The sales tax for an item was

$12.90

and it cost

$430

before tax.

Find the sales tax rate. Write your answer as a percentage.

Has available 480480 yards of fencing and wishes to enclose a rectangular area. (a) express the area a of the rectangle as a function of the width w of the rectangle. (b) for what value of w is the area largest? (c) what is the maximum area?

Lucy is studying her ant farm. She needs to approximate the number of ants in the population, and she realizes that the number of ants, N, close to 50 more than double the volume of the ant farm, V.

Mitch refuses to dine at a certain restaurant because he recalls reading two or three negative reviews of its service on a popular website. Mitch is falling prey to:

She purchased 20 tickets and was told that she had a 20% chance of winning. How many tickets were sold?

Ken rounds 0.549 to the nearest tenth and gets 0.6. Tyler rounds 1.486 to the nearest hundredth and gets 1.49. Grant rounds 2.972 to the nearest tenth and gets 3.0. Who made an error in rounding? Which number should he have gotten after rounding?

People blink ten times per minute, how many times per hour do they blink

Which of the following is not a right a right to protected by the constitution and/or bill of fights?

What is 56 divided by 45 times 2?

Simplify x+20-16 20+x-16 x+16-20 16+x-20 20 - (x+16) 20 - (x-16) x-20-16 20-x-16

Turn A number, w, divided by 3 is 7 into equation