In a recent survey, 5 out of 8 people shopping at a mall spent at least $20. Approximately 3, 200 people shop at the mall on any given day.
What is the expected minimum amount of money spent at the mall on any given day?

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)

just sum

10 + 10 = 20