Which of the following are solutions to the equation below 4x^2-81=0

96 ounces equals how many pounds

Is 9a^3-27 a perfect cube

The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes). The remaining credit after 43 minutes of call is $19.84, and the remaining credit after 65 minutes of call is $17.20.

Suppose you are given that a=5 and 4a + b=6. What can you prove by using these statements and the substitution property?

Mia has 7/8 ponds of bird food. She puts an equal portion into 4 bird feeders how much bird food in pounds does she put into each bird feeder

Five less than the product of 4 and a number is equal to 8

Kevin is solving this problem. 737 * 205 What are the partial products Kevin will need to solve the problem? A. 3,685 and 147,400 B. 3,685 and 14,740 C. 3,685 and 1,474 D. 3,685 and 7,370 and 147,400

A freshman English class at a certain college has 49 women and 20 men. If 5 students are randomly selected, what is the probability that they are all men? Round to five decimal places.

A 5.5 foot woman casts a shadow that is 3 feet longer than her son's shadow. the son casts a shadow 13.5 feet long.

Kim has 2 1/2 cups of peaches. How many 1/4-cup servings can she make?