21. CD = DF, E bisects DF, and CD = 14.2. Find EF

Tickets for a school jazz concert were sold before the concert and at the door. After reviewing ticket sales, the band director found that 80 fewer tickets were purchased at the door than before the concert. A total of 520 tickets were sold.

If you pay $48 for 8 pounds of chicken, what is an equivalent rate?

Prove with induction that all convex polygons with n≥3 sides have interior angles that add up to (n-2) ·180 degrees. You may assume that a triangle has interior angles that add up to 180 degrees.

if 5 kids are reading books in the library and they're are 12 kids and the other kids want to read to but it takes 33 minutes to read a book and it is 3pm and it closes at 5pm how many kids will get to read out of the 12

What is 37-0=36 property

Which sample size will produce a margin of error of + - 6.3%?

Megan earns 9.50 per hour how much would she earn if she work for 5 hours?

6,484 : 24 what is the quotient?

The marketing team at a new electronics company is designing a logo that contains a circle and a triangle. On one design, the triangle's side lengths are 4 in., 7.5 in., and 8.5 in.

Juan wants to make flash cards out of a piece of cardboard that is by inches. What is the greatest number of flash cards that he can cut out of this piece of cardboard, if he wants them to be inches by inches?