. Use either the commutative property or combine like terms to create an equivalent expression.

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Bring the fraction a/a-4 to a denominator of 16-a^2

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.