Which of the following expressions is equal to - 1?

sec90°

sin180°

csc270°

Joe has 21 pounds of clay. He needs 5 1/4 pounds of clay to make one piece of pottery. How many pieces of pottery can he make?

Tia is buying paper cups and plates. Cups come in packages of 12, and plates come in packages of 10. She wants to buy the same number of cups and plates, but she wants to buy the least number of packages possible.

Simplify. 14y+112+2-134y-12 Enter your answer in the box.

4 3/4 years equals how many months

Gracie found 35 pinecones. Four sevenths of the pinecones still had seeds. How many of the pinecones still had seeds? Illustrate the problem

5) 6 (5a - 2) < 108 -1 0 1 2 3 4 5 6 7 8 9

What is x + 8 =.5?

6+18p-5=8p+13-2 slove for p

Find the product of 5/12 and 3/8. express your answer in simplest form.

Explain how to find the measures of the sides of a parallelogram if you know the measure of one side and the perimeter.