Which set can represent the side lengths of a right triangle? A. 5,11,12
B.2,4, 2sqrt 5
C.6, 7, sqrt 21
D. 5, 7, 5, sqrt 3

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

Choose the number sentence that shows the identity property of addition. a. 122 = 61 + 61 b. 62 = 1 + 61 c. 61 = 0 + 61

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .