What is the value of y=7-2x when x=4?

X=3y+4 3x-5y=8 Solve using substitution

The ratio of girls to boys in the junior high band is 527

Which of the following is a monomial? A. 2x+yz b. 2+xyz c. 2xyz2 d. 2x-yz

So I am doing Zero and Negative Exponents in geometry and I am confused on whether (5.5) ^0 is undefined or equal to 1. How do I know which one it is when doing the math for this problem?

What is 3.0871212 in fraction

Solve the formula for the variable h. V = Bh/3 a. h = 3v/3 b. h = V / 3B c. h = 3V + B d. h = 3V - B

Convert 3/4 into a quotient and percentage

Simplify the expression 3 (-3y+2x) combine like terms a+3a-b+4b+c

If a figure has 5 sides 5 vertices and no equal sides what is it? it is a polygon BTW

If I rent a boat for $25 per hour and a charge additionally $12 for fuel is the number of hours I rent the boat proportional to the total cost