What is the total cost of a cell phone that costs $97.03 if there is an eight percent sales tax?

$104.79 (rounded to nearest penny)

Step-by-step explanation: Okay, so you know how you can multiply a number by a percent to get part of that number? Since you have the sales tax, 8%, you could multiply the original price by 8%, or 0.8, to get 7.76 (rounded to the nearest penny)- that's how much you would have to pay extra, since sales tax is an additional cost to your original price. From there you could just add 7.76 to 97.03 to get $104.79.

A shorter way:

Multiply by 108%, or 1.08, since you have to pay 100% of the cost plus an additional 8%. That will give you that exact amount without the extra step :)

19.side- angle- side

20. angle- side- angle

step-by-step explanation:

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get