Which are equivalent expressions

11a + 12b = 23ab

6x + 9y = 9x + 6y

3x + 6x = 3x(1 + 2)

3x + 5x = 8x

5y + 10x = 5(y + 2x)

chase is right because he already been to the swings and he know how far it will be to get there

step-by-step explanation:

hi there!

step-by-step explanation:

a roof pitch is basically for every inch rise there is 12 inches run.

the height of the roof is also known as the rafter.

formula: rafter^2 = rise^2 + run^2

rafter^2 = 5^2 + 12^2

rafter^2 = 25 + 144

rafter ^2 = 169"^2

the height of the roof from the lowest point to the highest point is 169"^2.

hope this : )

$450 i think. hope this ☺