Write 0.0002507 in scientific notation.

2,507 x 10-7

2.507 x 10-4

2.507 x 104

2,507 x 107

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

After n years, the amount of money in William's saving account can be modeled by the function s (n) = 300 (1.0016) 12n, and the amount of money hiding in his desk drawer can be modeled by the function d (n) = 75.

Find the supplement of a 55° angle, in degrees.

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