The width of a rectangular room is 3 m shorter than its length. If its perimeter must not exceed
42 m, calculate the greatest length that the
room can have.
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You have two cards with a sum of -12 in both hands. a. what two cards could you have? b. you add two more cards to your hand, but the total sum if the cards remains the same, (-12).

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?