Which equation is an example of the use of the associative property of addition?

1) x+7=7+x

2) 3 (x+y) = 3x+3y

3) (x+y) + 3 = x + (y+3)

4) 3 + (x+y) = (x+y) + 3

mr. Jefferson took out a loan for 15,000 at 12% annual simple interest. If it takes him 5 years to repay the loan how much will he repay?

If a matrix is not invertible, can I say the matrix has many solutions? Or is the matrix has many solutions as well as the possibility or no solutions?

What is the sum of the first 12 terms of the geometric series 200+100+50+25 + ...

The sales manager at Western Furniture Company tracked data on the number of customers who came in the store each day and the total dollar volume of sales at the store during the same day.

Janelle has $75. she buys jeans that are discounted 30% and then uses an in-store coupon for $10 off the discounted price. After paying $3.26 in sales tax, she receives $17.34 in change. what was the orginal price of the jeans?

The volume of a sphere is 36π ft3. What is the radius of the sphere? Use the formula V = 4 3 πr3 to find your answer.

97 is what percent of 152?

In the problem 5 divided 3/5 instead of dividing 5 by 3/5 we can find the answer by multiplying 5 by what number

What is the solution of the equation x2 - 4x + 1 = 0?

Each edge of a cube measures 4.7 in. What is the surface area of the cube? Enter your answer, as a decimal, in the box.