If the angle AOC = 27 and measure of angle AOB =61 what is the measure of angle AOB​

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

Plz hurry evaluate the expression a+b where a=8 and b=19