Use the substitution method to solve the system of equations. 3x + 4y = 10
y = x-1
A. (2,3)
B. (2,1)
C. (3,2)
D. (1,2)

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

Which function is odd check all that apply a. y=sin x b. y=csc x c. y=cot x d. y=sec x

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left