Solve the system of equations using substitution.

y = −2x + 1
4x + 2y = −3

a. infinitely many solutions
b. no solution
c. (0, −5)
d. (−5, 0)

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

Qrst is a parallelogram. determine the measure of ∠q pls