Please help me solve this

Value Grocery Mart has the better deal

Step-by-step explanation:

If Market City is selling their crackers for $1.75 a box, we could either multiply that by 3 since we know what 3 boxes of crackers cost for VGM or divide their 3 for 5 by 3 to see how much 1 box is, which is $1.67

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.