Hi, i need with these questions!

8. factor 54a+24b.

(that's all it says, if you need the multiple choice answers, ill comment them)

9. which of the following expressions is equivalent to 6(5+3x)?

(if you need multiple choice answers ill comment)

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

u also answered this so i think u would know but i am here to

put in or use mine