Addition and subtraction are examples of ___ because they undo each other

I am a rectangular, and my area is 80 squares inches. My width is 2 inches shorter than my length. What is muy perimeter?

Andrew can paint the neighbor's house 3 times as fast as Bailey. The year Andrew and Baikey worked together, it took them 5 days. How long would it take each to pain the house?

You play a game where you score - 6 on the first turn and on each of the next 3 turns. what is your score after those 4 turns

You spin the spinner and flip a coin. Find the probability of the compound event. A spinner is divided into 5 equal regions. The sections are labeled 1, 2, 3, 4, and 5. The probability of not spinning a 5 and flipping heads is

A garage sells cars it offers a discount of 20% off the normal price for cash dave pays 2500 cash for a car calculate the normal price of the car

A dump truck is careying 4250 pounds of gravel. There are 2000 pounds in a ton. Express the weight of the gravel in tons only by using a mixed number. If necessary, simplify the fraction part of the mixed number.

A marketing research company desires to know the mean consumption of milk per week among males over age 25. They believe that the milk consumption has a mean of 2.5 liters, and want to construct a 85% confidence interval with a maximum error of 0.

Four friends go mout to dinner and decides to split the bill evenly. each friend orders a soda for 2.00, an entree for 12.99 and they all four share a dessert for 7.99 how much is the total bill

I need to know what is 5: 1 -- 4

April can buy a package of 10 folders for $1.20 or a package of 8 folders for $1.12. What is the unit price, per folder, in each package?