The decay rate, k, for a particular radioactive element is 2.5%, where time is measured in years. Find the half life of the element. (Round to one decimal place)

Celeste wants to have her hair cut and permed and also go to lunch. She knows she will need $50. The perm cost twice as much as her haircut and she needs $5 for lunch. How much does the perm cost?

Dori charges 60 customers £1 to play a game. The probability of a customer winning is 0.35 and the prize is £2. How many of the 60 customers can Dori expect to win and how much profit will Dori make?

A bag of assorted candy contains 11 peppermints, 8 chocolates, 13 gumdrops, and 9 licorices. Amy randomly takes a gumdrop from the bag and eats it. What is the probability that the next candy she takes from the bag will be a gumdrop or a peppermint?

Subtract (4x-3y) from the sun of (12x+9y) and (-2y)

Last month Kim trained 3 times as many dogs as cats. If the total number of cats and dogs she trained last month is 28, how many cats did Kim trained

Thomas rents a car for his vacation. the mileage included with the rental is 54 miles. For every mile he drives over 54 miles, he needs to pay $1 4/5. If he drives 69 miles, how much extra does he need to pay?

A package of organic strawberries cost 1.50 while they are in season and $2.25 when they are not what is the percent increase

Name three numbers between. 33 and. 34

Boris bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $150 more than the desktop. He paid for the computers using two different financing plans.

What is 11 increased by 12%