What is the communitive property of addition?

When a = 4 and b = 3/7, which of the following expressions represents the smallest value? A. 59/7 B. 22/7 C. 28/3 D. 3/28

Yolanda's boat has a top speed of 9 miles per hour in still water. While traveling on a river at top speed, she went 10 miles upstream in the same amount of time she went 20 miles downstream. Find the rate of the river current.

Sam earns $ 500 each week working his full time job. His employer has a 17 % tax deduction on all monies earned each week.

Use the discriminant to describe the roots of each equation. Then select the best description. x^2-4x+4=0 double root real and rational roots real and irrational roots non real roots

The measure of an angle is 172.2°. what is the measure of a supplementary angle?

Evaluate each expression 12-3 (4) and 12:3 (4) and 3*4 (5-3) and 3 (4+7) - 5*4

What is the length of the line

A box contains 6 plain pencils and 2 pens. A second box contains 5 colored pencils and 7 crayons. One item from each box is chosen at random. What us the probability that a plain pencil from the first and a color from the second are selected?

To which whole number is 1.89 closest

Evaluate 2xy when x = - and y = 3. The value of the expression is ]