PLEASE HELP Mark cycles from home to school at a speed of 16 km per hour. He cycles back on the same route at a speed of 15 kilometers per hour. The total time taken for the journey is 72 hours. Given that the distance from home to school is d kilometers, and that distance = speed. time, write and solve an
equation to find the total distance traveled.

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

the answer is b.

surface area: 169π

volume: 366π

i got it down.

26- 6 = 20. erica has 20 bottles left

simplified/solved

anwser:

-80x^2+158x+158