A community group sets up a lemonade stand and starts the day with 21% gallons of lemonade. At the end of the day, 2 %
gallons remain. How many gallons of lemonade were sold?

The answer is 10.75 or 10/75 (Idk if its simplified, im not that smart)

Step-by-step explanation:

You have to divide the 21 1/2 by the 2, and it gives you 10.75, then you change it to a fraction if needed.

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,