I will give brainlest and 75 points

3

4

2

1

Step-by-step explanation

3.2x+5.7=2.5x. X=-8.142857

10.1x-1.6x+44=-7 x=-6

7.9x+x+4=1.1x-16 x=-2.564103

1/4x+5/2x-2=4-1/4x x=2

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