Adress that normaly sells for 72 is on sale for 45 what is the percent decrease

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.

Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle