How many ordered pairs of prime numbers (a, b) are there such that a+b=100?

What is the gcf of 40 and 48

Find the measure of each angle: Complementary angles with measures (5x) ° and (4x-18) °. A. 110 and 70 B. 52 and 38 C. 62 and 28 D. 60 and 30

In Amy's backyard, there are also chicken and rabbits, and there are 2 more chickens than rabbits. The total number of legs is 124. How many rabbits and how many chickens?

You have a collection of 7 science fiction books which you would like to arrange on your bookshelf. The number of possible arrangements of 7 books is?

Write the following sentence as linear equation. Adding 16 to 5 times a number x is 40.

The distance d traveled at a constant speed r is directly proportional to the time t spent traveling. a car moving at a constant speed travels 150 miles in 2.5 hours.

The Suarez family pay $23.25 for three movie tickets at the rate could the family use a $100 gift certificate to buy 12 tickets

If the value of dependent variable y increases as the value of the independent variable x increases the graph of this relationship could be a? A. Horizontal line B. Vertical line C. Line with a negative slope D. Line with a positive slope

An angle measures 106° less than the measure of its supplementary angle. What is the measure of each angle?

Camilla is 14 years old. She is one-third of her teacher's age. How old is her teacher?