Explicit arithmetic formula for the sequence

16,13,10,7,4

Your cell phone plan costs $34.99 per month plus $0.15 for each text message you send it receive. You have at most$39 to spend on your cell phone bill. What is the maximum number of text messages your can send or recive next month?

How can you find the area of a polygon that is not for which you know an area formula

What is 72/3 as a mixed number

Stanley ordered 2 pizzas cut into eighths. if he ate 5/8 of a pizza, how much was left?

An alloy is a mixture of metals. Suppose that a certain alloy is made by mixing 120 grams of an alloy that contains 42%copper with 200 grams of pure copper. Dont round

A bag has 5 red marbles, 6 blue marbles and 4 black marbles. What is the probability of picking a black marble, replacing it, and then picking a blue marble

Each angle of a regular pentagon has a measure of

An electrician cut 36 feet of wire into sections that were each 8 1/2 feet long. After cutting, how many pieces of wire did the contractor have?

5|9-5n|-7=38 how do I solve this

The pyramid shown has a square base that is 12 centimeters on each side. The slant height is 18 centimeters. What is the surface area of the pyramid?