Asquirrel ran 9 miles in 1 hour. which expression can be used to determine its speed in miles per hour?
a 9 miles ÷ 1 hour
b 1 hour ÷ 9 miles
c 1 mile ÷ 9 hours
d 9 hours ÷ 1 mile

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

The average daily maximum temperature for laura’s hometown can be modeled by the function f(x)=4.5sin(πx/6)+11.8 , where f(x) is the temperature in °c and x is the month. x = 0 corresponds to january.what is the average daily maximum temperature in may? round to the nearest tenth of a degree if needed.use 3.14 for π .

What ratio is proportional to 18/21