Find the solution(s) of the system of equations. y = x2 + 4x
y + x2 = –4x
Question 8 options:

A)

(0, 0)

B)

(0, 0) and (4, 0)

C)

(–4, 0) and (4, 0)

D)

(–4, 0) and (0, 0)

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

Find dy/dx using implicit differentiation ln(20+e^xy)=y

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers