A backpack costs $18 and has a 7 percent tax. How much will Sheila have to pay for the backpack after tax?

$1.26

$5.40

$19.26

$30.60

Rounded to the nearest dime

42 - 10 x 18 - (20)

8. In 1986, an accident at the Chernobyl nuclear power reactor led to widespread contamination of Cesium-137, a highly radioactive, man-made isotope of Cesium. It has a half-life of 30.17 years, which means it decays at a rate of 2.3% per year.

The sum of two numbers is 33 One number is 2 times as large as the other what are the numbers

A cyclist rides her bike at a speed of 12 meters per second. What is this speed in kilometers per hour? How many kilometers will the cyclist travel in 2 hours? Do not round your answers.

You have a square diving pool that is 40ft wide, 40ft long, and 15ft deep. How many cubic feet of water will this pool hold?

On a 100-question math exam, Traci needs to get at least 75 correct answers to pass. If Traci id certain of her 50 answers, how many correct answers does she need to get in order to pass the exam?

On Fridays, Harry's school serves a choice of hamburgers or pizza for lunch. 60% of the sixth grade class ate pizza this Friday. If 36 sixth grade students ate pizza, how many students are in the sixth grade?

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Given the function: f (x) = 2x^ 3 - 3 2 x, find f ( - 4)). es