How do you express -13 in two other ways?

Employees appliance store receive an 20 percent off of the lowest price on an item if an employee purchases a dishwasher during a 15 percent off sale how much will he pay if originally cost 450? What fractions can be multiplied to get 27? A picture 40 cm high is placed on the wall with its base 30 cm above the eye level of an observer if the observer is approaching 40cmsec how fast is the measure of the angle? What two numbers can you multiply to get 21 and add to get 20? What does this look like - one angle of a triangle has a measure equal to one quarter of the measure of each of the other two angles? How many cm in 7.9 inches? What type of math do pilot use? What is the anwer to how do you put 56.07 as a fraction? One yard is equal to how many feet? What is the tens place in 80? What is importance of logarithm's in math? What are two metric units commonly used for mass? A right triangle has the hypotenuse 12cm and an angle 30 degrees what is the opposite angle? Charts and graphs on the relationship between eating breakfast and school performance? What do you mean by differential equation? How much is 2.5 percent of 17? What is optimistic values? What is one tenth plus one twentieth? How to convert 0.91 into a fraction? What side that is the bottom of triangle?