Show me how you got christmas paper that was 8 feet long and 8 ft wide and the perimeter is 32 how did you get that show example

Use the inverse of the function y=x^2-18x to find the unknown value [tex]y = \sqrt{bx + c \: + d} [/tex]

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Consider the input and output values for f(x) = 2x - 3 and g(x) = 2x + 7. what is a reasonable explanation for different rules with different input values producing the same sequence?