Which expression represents 4 times the number r?

A. 4 - r

B. 4r

C. 4 + r

D. 4/r

If (5x-1) and (5x-19) for a linear pair then x is

Which equation is equivalent to - 3 x + y equals 5

Which expression is equivalent to r^m : r^n r^m - n r^m + n r^m ⋅ n r^m : n

Add (2x^4-x^2+5) - (x^4-x^3+2x^2)

What is the gcf of 25

Maggie is rock climbing. After reaching the summit, she descends 14 feet in 2 1/3 minutes. If she continues at this rate, where will Maggie be in relation to the summit after 8 minutes

Sarah walks 3.1 kilometers on Monday and 1.35 kilometers on Tuesday. On Wednesday she walks 2.4 times as far as she walked on the previous two days combined. How far does Sarah walk on Wednesday?

A class is divided into 4 groups. A bag contains pieces of paper that are red, blue, green, and yellow. For every blue - or green-colored piece of paper, there are 2 red - and 2 yellow-colored pieces of paper.

Limit as x approaches pi from the left of cotx. Solve by substituting cos/sin for cot

4. Solve the given system, using the substitution method. y = 4x - 6 8x - 2y = 14 A. (14, 12) B. (12, 14) C. There are an infinite number of solutions. D. There is no solution. 3. Solve the given system, using the substitution method.