Answer
7 = -x
Step-by-step explanation:
18- 8x = 8 + 3(1 - 3x)
18- 8x = 8 +3-9x
18- 8x = 11 - 9x
7- 8x = -9x
7 = -x
20% = 0.20
1254 x 0.20 = 250.80
so he has $250.80 deducted every month
Semiannual means there will be two total periods in a year. Divide ten percent by two to get the interest rate per period. Then multiple by 1+i twice
M = 5 and x = 4
3(5) - 2(4)
15 - 8 = 7
I hope this helps!
Answer:

Step-by-step explanation:
Let x be the original price.
( 1 - 20% ) x = 23.2


