5+ 2 root 3 / 7 + 4 root 3 equals to a + b root 3

Of of at a : $6, $8, $7, $6, $5, $7, $5, $7, $6, $28, $30 is?ato .ato .ato .ato .

What should be done to both sides of the equation in order to solve -5m = -40? a) multiply by -5. b) divide by -5. c) multiply by -40. d) divide by -40.

(-y to the power of 2 - 4y- to the power of 2 -6 y +3)