Which pair of slopes could represent parallel lines?

m = 7; m = 49

m = 2/7; m = 7/2

m = - 3, m = - 9/3

m = - 1/2, m = - 2

A ball has a diameter of 9 in. It consists of 2 parts. The inside is a spherical core with a diameter of 6 in. Surrounding the core is a layer of polyurethane. What is the volume of the polyurethane? Use 3.14 to approximate pi.

a researcher has two groups of subjects, one that has been taught a memory aid and one that has not. Both groups are asked to learn a list of 20 nouns in two minutes, and both are then given a recall test. What is the independent variable

Jojo is planning on serving ice cream sundaes to 25 guests each tub of ice cream served 10 poeiple and costs $3.99 how much will he spend on icecream?

Petra jogs 2 miles in 24 minutes. At this rate, how long would it take her to jog 9 miles?

What is the sum of 5 5/12 + 4 11/12=?

What is 1 third as a percent

At the beginning of the year Jordan had $7000 in his no-interest checking account. He withdraws $300 every month and makes no deposits. Write an equation for the account balance after x months. Do not include the dollar sign.

A middle school has a speech club with a total of 36 students. The ratio of girls to boys is 4:5. How many girls are in the speech club? How many boys?

The GDP is $11,465.2 billion. The population is 249,793,675. Find the per capita GDP.

2 + 5/6 - 1 + 3/10 why don't you put in a plus sign