Orlo uses a spool of wire to make 15 necklaces. At this rate, how many spools of the same size would he use to make 50 necklaces?

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?