Hmmm im on the same question so i think its this
Answer:
Step-by-step explanation:
C, (1,7)
Answer:
C
Step-by-step explanation:
So if x is the number, then 4 times the number would be 4x and adding that to -8 would be 4x + (-8) and then 12 times the number would be 12x, so you have 4x + (-8) = 12.
Then, solve:

subtract 4x from both sides

divide both sides by 8

Question 3. You divide 5 1/4 by 3/4 then multiply that by 20.
The answer is 140
Answer:
Convert tax percentage into a decimal by moving the decimal point two spaces to the left.
Multiple the pre-tax value by the newly calculated decimal value in order to find the cost of the sales tax.
Add the sales tax value to the pre-tax value to calculate the total cost.
Step-by-step explanation:
i hope this help you