14 points and brainily pls do both and thanks Directions Now that you know how to solve percent change problems, solve the question from the beginning of the lesson it is copied below. (PICTURE)

77

step-by-step explanation:

step-by-step explanation:

de-gf

hj=3x+20

ji=15x-64

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116