Please please help 1. Estimate the following:

a) What is your estimate for the total amount of time students in your school spent
during this past semester studying for final exams?

b) If the land area of Earth was divided equally for each person on the planet, about how much would you get? You will need to look up the land area of Earth and the number of people on the planet to get your answer.

c) What is your estimate for the total number of hairs on your head?

d)How many minutes will Canadian high school students spend texting on their cell phones during the next year?

2. A website says that the driving distance between Hamilton and New York City, New York is 733.8 km. Driving time is approximately 7 hours and 26 minutes. Estimate the following items.
a) How many times would you need to stop for fuel?

How long would each stop last?

b) What other stops would you need to make?

Estimate the total time needed for these stops.
c) So, the total time for the trip would not be 7 hours and 26 minutes. It would be closer to hours.

How many nights would you sleep over?

d) If you leave Hamilton at 10:00 a. m. on a Monday morning, approximately what time would you arrive in New York City?

"it's not the heat, it's the humidity".   that's a partly valid phrase you may have heard in the summer, but it's actually both.   the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature.   this has important considerations for the human body's comfort.   when the body gets too hot, it begins to perspire or sweat to cool itself off.   if the perspiration is not able to evaporate, the body cannot regulate its temperature.   evaporation is a cooling process.   when perspiration is evaporated off the body, it effectively reduces the body's temperature.   when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases.   in other words, the human body feels warmer in humid conditions.   the opposite is true when the relative humidity decreases because the rate of perspiration increases.   the body actually feels cooler in arid conditions.   there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation:

5/20 so 25%

step-by-step explanation:

i believe it's a.

i'm not sure on this one, most likely correct.

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like: