Can someone me with these? and with work?

On #7.

Step-by-step explanation:

12(3+y)=5(2y+8)=

12y+36=10y+40=

12y-36=10y+40-36=

12y=10y+4=

12y-10y=4

2y=4

2y/2=4/2

y=2

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.

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