12r
if v=
(r+r)
make r the subject of the equation .

You have 6 dollars +12 pennies +to quarters + 4 dimes=2 nickels how much do you have

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?