The brightly colored ties were on and the gloves were off as President Barack Obama and former Massachusetts Gov. Mitt Romney embarked on the first of three presidential...
Toy cars cost $100 each and toy tucks cost $200 each. If x toys cars and y toy trucks are purchases, c represents the average (arithmetic mean) cost of the toys purchases, and x and y are both greater than zero, then y is equal to what?
Lee invests $7500 at 6% per annual compound interest.
At the end of each month, he deposits a further $500 into the account.
(a) What is the monthly interest rate?
(b) How much is in the account after the first month? (Assume the interest is calculated before the new deposit is made)
(c) What...