Step-by-step explanation:
r-5r-6s+8s-15
-4r+2s-15
= 2s-4r-15
Answer:
9x -2
Step-by-step explanation:
(7x + 3) + (4x - 1) - (2x + 4)
Distribute the minus sign
(7x + 3) + (4x - 1) - 2x - 4
Combine like terms
7x+4x-2x +3 -1-4
9x -2
You had $9.28 prior to making the withdrawal
-$20.51 = x - $29.79
x = $9.28
The answer c, because they got 9 out of 15 flips being heads. This probability is 0.6. The other answers are not accurate.