You invest $275.00 in a money-market account that pays simple interest at a rate of 10%. How long must you leave your investment in the money-market account if you expect to earn $27.50 in interest?

Write a multiplication expression that represents a student getting 1/5 of each four ounces of paint.

Mariana averaged 72 on her first three history exams. The first score was 78. The second score was 6 less than the third score. What did she score on the second and third exams?

Determine the standard form of the equation of the line that passes through (-7 8) and (0 - 8)

If f (x) = 2x^2+1 and g (x) = x^2-7 find (f+g) (x)

9x + 4y when x = 4 and y=-3

Dr. Barber ordered 121 syringes and 53 needles. In total, how many items did Dr. Barber ordered

Jaime wants to know how fast she can type, so she times herself as she types a paper. The paper has 442 words in it, and Jaime types it in 13 minutes. What is her typing rate, in words per minute?

How can one fourthx - 3 = one halfx + 8 be set up as a system of equations?

Chris invests $2,200 into three accounts that pay 6%, 8% and 9% in annual interest. He has three times as much invested at 9% as he does at 6%. If his total interest for the year is $178, how much is invested at each rate?

If AC = 12 and BC = 13, find AB.