What is the measure of each interior angle in a regular 20-gon?
a. 20¡
b. 162¡
c. 180¡
d. 3240¡the measure of each interior angle in a regular 20-gon is 162¡. (20 - 2 * 180 / 20 = 3240/20 = 162?

What is the value of the discrimination for the quadratic equation 0=×2+2+×2

What will be the end result for the taxpayer who filed his federal income tax return using the 1040ez form shown belowa he'll owe $173b he'll receive a refund of $173c he'll owe $3921d he'll receive a refund of $3921

Sections of prefabricated woods are each 5 1/3 feet long, how long are 7 1/2 sections placed end to end?