13.45 + (-31.378) =

Math question don't know how to start this problem

In 1911, the first year of the Indianapolis 500 auto race, the winning car had an average speed of 109.416 feet per second. What is that speed in miles per hour?

If LMN is dilated by a scale factor of 0.5, which of the following statements is not true? A. The sides of LMN are congruent to the sides of L'M'N'. B. L'M'N' is smaller than LMN. C. LMN is similar to L'M'N'. D.

Enter your answer in the box. what is the value of z? 53=-19z 5 7z

If the value of land in an area is increasing 6 percent a year, how long will it take for property values to double?

The circumference is a circle is 8pie. What is the diameter of the circle?

Nevaeh mowed 2 lawns in 4 hours. What was her rate of mowing in lawns per hour?

A bookstore sells 4 fiction books for every 1 non fiction book it sells which statement is true A. For every 7 fiction books sold 4 nonfiction books are sold B. For every 25 fiction books sold 3 non fiction books are sold C.

Turn 276% into a mixed number

11,760,825 in expanded form

What's 9x - 7 = - 7 show your work