Abirthday party host planned for 20 people, but 17 actually attended. what is the percent error?

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

Agarden consists of an apple tree, a pear tree, cauliflowers, and heads of cabbage. there are 40 vegetables in the garden. 24 of them are cauliflowers. what is the ratio of the number of cauliflowers to the number of heads of cabbage?

Find the volume of the solid bounded by the plane z=0 and the paraboloid z=1-x^2 –y^2