If a + 4b = 33 and 6a + 3b = 51, what is the value of a + b?

(I got 5 but it was wrong)

A dealership purchased a four-door sedan for $15,000 and then sold it at 15% markup. The dealership paid the buyer $3000 for a trade-in, which was sold the following week at 25% markup.

Apply the distributive property to factor out the greatest common factor of all three terms. 14x + 21y + 7z =

Two different golf country clubs have the following membership fees and monthly costs. Ludwig's Fast 18 charges a $ 100 membership fee and then $30 a month. Ocean Shore Country Club charges a $160 membership fee and then $10 a month.

Bob has 54 more five-dollar bills than ten-dollar bills. The number of five-dollar bills he has is 7 times that of ten-dollar bills. How many dollars does Bob have in all?

How many square feet are in a square yard?

B) Work out (6 * 10%) = (3 x 10) Give your answer in standard form.

X=65-30 Solve for x A, B, C

Solve each system using substitution. 1. 4x = 3y-2; 18 = 3x+y 2. 3x+2y = 23; 1/2x-4 = y

6. How many positive integers not exceeding 1000 are divisible by 3 or 5 or 7?

bob has $830 in an account earning 5.3% simple interest. how much more interest would her account earn in 9 years with annually compounded interest?