When there is no traffic, it takes rina 4 hours to get from boston to new york. she drives at a speed of 60 miles per hour. her brother wants to get to new york in three hours. is it possible? how fast would he have to drive?

80 mph.

Step-by-step explanation:

The distance = speed * time

= 60*4 = 240 miles.

To travel 240 miles in 3 hours  you would have to travel at 240/3 = 80 mph, So it is possible for her brother to do the journey in 3 hours. (Though in the UK he would be breaking the speed limit!).

for any of you who need the translation here it is

step-by-step explanation:

find the angular size of the equatorial radius of the earth, if the horizontal parallax of the sun

5x + 5

step-by-step explanation:

you should always add the diagrams and graphs we cannot see. this particular question is kind of borderline because we can make a graph for you.

(f + g)x = -x^2 +3x + 5 + x^2 + 2x

(f + g)x = 5x + 5

the graph of z = 5x + 5 is shown below. always use desmos when in doubt.