Using symbols. There are 3 shelves. Each shelf has 21 books. How many books are there in all?

What is an asymptote?

By how many grams is 1.3 kg heavier than 700g

What is x (x-4) = 0 by factoring

If A = {4, 7, 10, 13, 17} and B = {3, 5, 7, 9}, then which of the following statements is false?

Faizal has £400. The dash between numbers means its a fraction. he spends 1/4 of it on rent and 2/5 of it on food. what fraction does he have left?

Given f (x) = - 15x - 13, find x when f (x) = - 28.

Tickets of a program at college cost $4 for general admission or $3 with a student ID. If 180 people paid to see a performance and $613 was collected, how many of each type of ticket were sold?

If you select 10 Sundays from the school year at random, is likely to have studied the most hours overall, and is likely to have studied the least hours overall. NextReset

If the factors of a polynomial are x-2 and x-5, what values of x make that polynomial 0? A. 1 and 2 B. - 2 and - 5 C. 2 and 5 D. Cannot be determined

A dog weighs 2 pounds more than a cat. 3 cats and 4 dogs together weigh 43 pounds. How much does a dog weigh? How much does a cat weigh?