Kayla's class went on a field trip to an aquarium. One tank had 30 clown fish. She miscounted the total number of clown fish in the tank and recorded it as 24 fish. What is Kayla's percent error?

If the sides of two similar triangles are in the ratio 4:9, what is the ratio of their perimeters?

Ayana has 220 coins in her piggy bank. Of those total coins, 40% are pennies. How many coins are pennies?

Harry, hannah and howard are all going by train to london to watch the olympics. hannah departs on the 2:15 pm train. harry's train journey takes 50% longer than howard's. harry departs on the 3:00pm train.

Joyce paid $100 for an item at the store that was 20 percent of the original price. What was the original price?

The range of a projectile fired at an angle θ with the horizontal and with an initial velocity of v 0 feet per second is r = 1 v 20 sin 2θ where r is measured in feet. a golfer strikes a golf ball at 120 feet per second.

A taxi charges a flat fee of 4 dollars plus 2.25 per mile how much will it cost to travel 8.7 miles

What is the slope of the line between - 7,-2 and 9,4?

A cistern can be completely drained by a pipe in 6 hours. It can be filled by two pipes in 4 hours and 5 hours, respectively.

Demetrius is a salesman whose base pay

A spinner is split into 4 equal parts labeled 1, 2, 3, and 4. What is the probability of landing on an even number? (Write your final answer as a percentage.)