Combining like terms

simplify each expression

-9k + 8k

How many integers are there from 10 through 99? b. how many odd integers are there from 10 to 99? c. how many integers are there from 10 to 99 that have distinct digits?

Find the lesser of the two consecutive integers with a sum greater than 16

The area of a circle is 36 pi. what is the radius of the circle?

If your traveling at 60km/hr, how many centimeters per second is that equivalent to

A 19-foot piece of string is cut into two pieces so that the longer piece is 4 feet longer than twice the shorter piece. Find the lengths of both pieces.

Mandee is looking for a new car. She has test-driven two cars but can only purchase one. The probability that she will purchase car A is 0.51, and the probability that she will purchase car B is 0.27.

Factor 6q2 - 41q + 30

Write an equation for a circle with center at (6, - 2) and diameter = 12.

What come with a quationt of 1/20

Layna can paint a 350-square-foot room in 4 hours. It takes Bebe 7 hours to paint the same room. Which equation can be used to find t, the time it takes Layna and Bebe to paint the room together