Samuel paid $9.10, including tax, for a dog collar. before tax, the original price of the collar was $8.75. what was the sales tax rate? let r represent the rate as a decimal. complete the equation that represents the problem. (hint: the original price of the collar plus the amount of tax equals the total cost including tax.)

r=0.04

Step-by-step explanation:

The original Price of the Collar= $8.75

Amount Paid by Samuel =$9.10

Tax Paid = Amount Paid- Original Price

               =9.10-8.75=$0.35

Let x be the rate of tax.

The rate is 4%.

Therefore, rate of tax(r) in decimal = 0.04.

NOTE: Since the equation to be completed is not given, I have simply found the rate and hope you can pick it up from there.

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.