The cost of printing cell phone pictures by f(x) = 0.25x, where x is the number of pictures that you print and f(x) is the cost in dollars. Find f(5) and tell what it represents.​

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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answer:

what is your question that you ask

step-by-step explanation:

step-by-step explanation:

the answer is 89 d

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