Answer: There is one valid solution to the equation 5x + 8 - 7x = -4x + 1, x = -3.5.
Step-by-step explanation:
Answer:

Step-by-step explanation:
2/3 = 0.6 repeating
3/7 = 0.42857
Answer:
x = 2 because 5 times 2 = 10 and 10 - 2 = 8
Step-by-step explanation:
Answer:
First find what the sale price of the CD is. 30% off means the CD is selling for 70% of the original cost ( 100%-30% = 70%)
Multiply the original cost by 70%:
17.00 x 0.70 = $11.90 ( sale price)
Now you need to multiply the sale price by the tax percentage to find the amount of tax:
11.90 x 0.08 = 0.95 ( tax)
Now add the sale price and the tax for the total cost:
11.90 + 0.95 = $12.85