Houa has an action figure collection. She keeps some in a display case and the rest on the wall. 82 of her action figures are on the wall, and 59% of her action figures are in the display case. What is the total number of action figures in Houa's collection? Please help, would be appreciated :)

Which expression is equivalent to? assume x > 0 and y > 0.

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse