Which is an equivalent expression of: −2(5r+ 3) + 9r?
A) −19r – 3
B) −10r – 6
C) −10r+ 3
D) −r– 6

What is the equation and solution for the sentence? the sum of a number and thirty-one is one hundred thirteen. write the equation as n-31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and add 31 to both sides. the answer is 144. write the equation as n-31=113 and add 31 to both sides. the answer is 144.

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

What is 6/10 rounded to the nearest half