A class of 25 student has 15 girls and 10 boys. If one student is chosen at random, what is the probability it is a girl

What is 3 1/12 multiplied by 2 as a mixed number or fraction

How do frogs close their eyelids

Find the value of each variable. (y + x) 2xx (y - x)

The ages of the winners of a cycling tournament are approximately bell-shaped. The mean age is 27.2 years, with a standard deviation of 3.5 years. The winner in one recent year was 23 years old. (a) Transform the age to a z-score.

Solve for t in t/-4=9

Gary made $6,975 working 25 hours a week for 18 weeks. How much did he earn per hour?

Find an equation of the line that satisfies the given conditions. Through (-1, - 2); perpendicular to the line 2x + 7y + 8 = 0

The difference of two numbers is more than 12, and one of the numbers is 3.

What is a spiral review of 14-6

How many quarts equal to 8 gallons