You have $80 and your brother has $275 dollars. you save $10 of your allowance each week. your brother spends his allowance plus $15 each week.

1. write an equation to model this.

2. how long before you have as much money as your brother?

3. how much have you saved when you catch up to him?

b.-4 units

all you   do is count how many times you move

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,