Maria is planning a party. Nancy, her friend, suggest that she should order three pizzas for every seven people. If she is expecting 21 people at the party, how many pizzas should she order?

One light year is approximately 5,880,000,000,000 miles. If a star is 8.5 light years from earth approximately how many miles is it from earth

A researcher wants to run a 2 x 3 mixed factorial design. The first factor is the within-subjects. The second factor is the between-subjects. If the researcher wants 20 observations per cell, how many participants will he need in total?

How many times dose 3 go into 3

Diners frequently add a 15% tip when charging a meal to a credit card. What is the total amount charged if the cost of the meal, without tip, is $10 ?

What is the greatest perfect square that's is a factor of 756?

Banks will pay you interest on your money based on the interest rate. True or false?

The perimeter of a rectangle is 136 ft. The ratio of its length to its width is 9 : 8. What are the dimensions of the rectangle? 40 ft by 28 ft 44 ft by 24 ft 48 ft by 20 ft 36 ft by 32 ft

Multiply (3x2 + 2x - 1) (2x + 3)

Find an angle x where sin (x) = cos (x)

Greta and Marge are collecting money for a local charity by taking donations outside of busy local businesses. Hoping to collect the most money today, Greta gets to her collection spot and begins collections at 8am.