X=13+4x. 13+4x=22
0=13+3x. 4x=9
3x=-13. x=9/4
x=13/3
Answer: -2 and -7 i think
Answer:
r=20
Step-by-step explanation:
34-2=32 32 - 12 =20 r= 20
Answer:
7/15
Step-by-step explanation:
If we're seeing how much pizza they both ate, we would add them together.

Find the common denominator

add

7/15 of the pizza was eaten
I think A, C, D are right because of the 12 pairs of heels, 6 are black (6/12) That means half of them could be chosen and be black (0.5). Another way to write 0.5 is as a percentage, 50%.