(04.07) julie is at the store buying groceries. she needs to get a quart of orange juice and some peaches. the quart of orange juice costs $2.25 and the peaches are $0.75 each. the function f(x) = 0.75x + 2.25 represents julie's expenses at the grocery store. what do the f(x) and the x represent?

f(x) is the total cost and x is the number of peaches.

Step-by-step explanation:

We know that each peach costs $0.75.  This means the expression 0.75x represents the total cost of peaches; this makes x represent the number of peaches.

We also know that $2.25 is the cost of juice.  Adding it to the cost of peaches gives us the total cost; this means f(x) represents the total cost.

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