Avery gets newsletter by email. he gets one for sports every 5 days, one for model railroads every 10 days ,and one for music every 8 days. if he got all three today, how many more days will it be until he gets all three newsletters on the same day again?

7.3

step-by-step explanation:

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,