After visiting the farm, you and your group of friends/parents decide to go to the Golden Knights Hockey
game. At the hockey game, someone buys hot dogs and
sodas for your group. Each hot dog costs $1.50 and each
soda costs $0.50. The total cost of the food was $78.50. A
total of 87 hot dogs and sodas were bought.

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,

mnkjn

step-by-step explanation:

inverse operation of addition