Use the substitution method to solve the system of equations. 3x + 2y = 13
y = x-1

A. (1,2)
B. (2,3)
C. (2,1)
D. (3, 2)

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

In the diagram below, tan θ = sqrt 3. what is the value of m?

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.