For what values of the variable is the rational expression undefined?

5x + 4 / x2-1

Translating Words into Operations If there are 26 students in each third-grade class and 3 third-grade classes in the school, how many students will attend an assembly for third graders if a total of 4 students are absent? students

A piece of candy weighs 30 grams. All of the candy in a bag weighs 750 grams. How many pieces of candy are in the bag? A) 15 B) 21 C) 25 D) 35

Jackie can stock a shelf in 40 minutes and Marisa can stock a shelf in 24 minutes. How long will it take them to stock 6 shelves together?

Suppose you want to build a small walkway around your garden so that there is someplace to walk around and work on your vegetables. The garden measures 20' x 30' and you want to increase the area of the garden to 1000 ft².

Christian randomly selects students from his grade to rate a math test as easy, moderate, or difficult. Of the students he surveyed, 13 said the test was easy, 11 rated it as moderate, and 3 found it difficult.

Can a variable squared be combined with a variable

I keep trying to understand this |4x+6|>-6 they want the intervol notation im just not understanding how to do it

George wants to save money for a car. George invests $1,100 in an account that pays an interest rate of 4%. How many years will it take for the account to reach $3,900?

In a right triangle, the acute angles measure * +15 and 2 * degrees. What is the measure of the larger acute angle of the triangle

In her gift shop, cheryl sells all stuffed animals for 60% more than what she paid her supplier. If one of these toys sells for $14.00 in her shop, what did it cost Cheryl?