Simplify each expression. 9x+6-4x-2x+1-159 x + 6 − 4 x − 2 x + 1 − 15
(6x^2-2x+5\right)+\left(2x^{2\:}-7x -11\right)

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 ?

Given that abcd is a rhombus, what is the value of x?

Which set of lengths could represent the sides of a triangle? a. 3, 7, 10 b. 4, 5, 10 c. 6, 8, 14 d. 12, 6, 7