Find the solutions of the system y = –2x – 1 and y = 3–x–1. what are the x-coordinates of the solutions? choose all that apply

a. 1
b. 0
c. -1
d.-2

Given this information, which expression must represent the value of b?

6.(q^9)^2 a. 2q^18 b. q^18 c. q^81 d.q^11 7.(6q^6)^-4 a. 6q^1296 b. 1296q^2 c. 1/1296q^24 d. 6q^-24 8. what is the value of 12x^-3 y^-1 for x = -1 and y = 5? a. -12/5 b.-10 c.-0 d.5/12

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²