A woman owns 21 pets. Each of her pets is either a bird or a dog. If her pets have a total of 76 legs, how many birds and how many dogs does she have?

2 divided by 946 long division

By installing if the scent water fixtures the average American can reduce water use to about 45 gallons of water per day using such water fixtures about how many gallons of water would the average American use in December.

What is the total cost of a sweater if the regular price is $34.00 and the sales tax is 4 %? 1 2?

Is 4 x - 3 equal 19 true false or open

Given a parallelogram, how would we prove (or know) the opposite sides are parallel?

an equilateral is a 3-sided plygon in which all sides have the same length. Write a formula for the perimeter, P, of an equilateral triangle whos perimeter is 72 inches.

Find N (4) for the function, N (u) = 4.

What is population change?

Use the distributive property to rewrite each problem so it only has two factors. Then solve. (44 times 3) + (56 times 3)

Jessica is walking home from a friend's house. after two minutes she is 0.7 miles from home. twelve minutes after leaving, she is 0.2 miles from home. what is her rate in miles per hour?