F(n)=-4n-3; find f(-1)

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Square a has a side length of (2x-7) and square b has a side length of (-4x+18). how much bigger is the perimeter of square b than square a?and show all work! you so

Which of these angles are complementary? a. 45o and 45o b. 63o and 117o c. 45o and 135o d. 90o and 45o