How many degrees are in the internal angle of a regular 13-gon

a payday loan store charges $40 for one month loan of $300. what annual interest rate is This equivalent to

In 2006 united states midterm election 104.9 million women were old enough to vote. Of those, 49% voted. Out of 96.2 million men who were of voting age 47% voted. How many more women voted than men?

Only 6 of the 75 trees in the park are at least 30 feat tall what percent of the trees are under 30 feet tall

A production manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. She then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours.

12 out of 15 as a decimal, percent, and fraction.

What is the factored form of the polynomial? x2 + 9x + 20 (x - 4) (x - 5) (x - 2) (x - 10) (x + 4) (x + 5) (x + 2) (x + 10)

290 pennies are equal to how many dimes

How can I teach surface area better?

What is the pi of S = (Πr^2) + (2Πr) h

If you have 12 friends and make three equal teams, what fraction do you use?