Circumference of a circle

A flight from Pittsburgh to Los Angeles took 5 hours and covered 3, 060 miles. What was the plane's average speed?

Henry can build 2 birdhouses in 30 minutes. How many birdhouses can he build in four hours?

Assume the given distributions are normal. Cucumbers grown on a certain farm have weights with a standard deviation of 2 ounces. What is the mean weight if 85% of the cucumbers weigh less than 16 ounces? Assume the given distributions are normal.

The prime factorization for 10,290

What is 0.66666667 as a simplified fraction?

45 is what percent of 200?

How many gallons of fuel costing $1.15 a gallon must be mixed with a fuel costing $0.85 per gallon to get 40 gallons of a fuel that costs $1 per gallon?

Solve the system of equations. - 4x + 11y = 15 x = 2y y = x=

At an IMAX theater, the giant rectangular movie screen has a width 26 feet less than its length. If its perimeter is 332 feet, find the length and the width of the screen.

A teen estimates that she sleeps 8 hours per day. What fraction of the day does the teen sleep? Write the fraction in simplest form.