Marco needs to buy some cat food. At the nearest store, 3 bags of cat food cost $7.50. How much would Marco spend on 5 bags of cat food?

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  $12.50

Step-by-step explanation:

The cost of 5 bags will be 5/3 times the cost of 3 bags:

  5-bag cost = (5/3)($750) = $12.50

Marco would spend $12.50 on 5 bags of cat food.

If you like, you can find the "unit rate" -- the cost of one bag of cat food:

  $7.50 / (3 bags) = $2.50 /bag

Then, multiply that rate by 5 bags:

  (5 bags)($2.50/bag) = $12.50

Note that we have multiplied by 5 and divided by 3, the same as if we had multiplied by 5/3.

I don't know what kind of triangle it is, but I have a formula for a right triangle. The formula is A= ab/2 The A Is one of the sides (Not the hypotenuse) and B Is the other (Not the hypotenuse) After you multiply those two numbers; you will have to divide them by 2. i hope this helped ^^