Answer:
Step-by-step explanation:
A is true. If you remove the brackets, the equation becomes -x + x = 0
B is not true. 0 = x + x. The equation gives 0=2x which can never be if x is anything but 0.
y=x+4
All work is in the photo
ok we know that volume of a sphere is 4/3 pi r cubed so just replace the letters with the entities given
2m+3/5=3
2m+3= 5 x 3
2m+3=15
2m=15-3
2m=12
m=12/2
m=6
Just pick 2 coins to compare (I mean the directions say compare 2).