How many different two-digit numbers greater than 50 can be formed from the digits 3,6,7, and 9 of repetition of digits is allowed?

Solve the equation: 5x^2-3x=2x^2+x

Find all solutions of the equation in the interval [0,2pi) 8sec^2x+4tan^2x-12=0

A shoe store is having a sale. A pair of sandals has an original price of $42. They are on sale for 30% off the original price. Sales tax of 7% is applied to the discounted total. Find the sale price of the sandals to the nearest cent.

What is negative one half plus two?

Write an equation for "eight less than a number is seventy-five". what is the number?

The price of a bicycle was increased from $300 to $450. A) What percent of the original price is the increase price. B) What percent of the increase price is the original price

A veterinary researcher takes an SRS of 60 horses presenting with colic. The average age of the 60 horses with colic is 12 years. The average age of horses seen at the veterinary clinic was determined to be 10 years.

Which ordered pair is the solution to y - x = 3 and 2x + y = 9?

Sally is interested in taking a job in a city which she's not familier with the cost of living. She is especially concerned about the cost of housing and is interested in the average cost of a three bedroom home.

A skating rink charges $0.75 to rent skates and $1.25 per hour to skate. How many hours did Penny skate if she was charged $4.50?