mike is building a 10 foot wide skateboard ramp for his backyard as shown below how much will it cost mike to make the ramp if the cost of wood is 2.29 per square feet?

sorry just need point sorryyy

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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