Is this expression contain a variable?

7+15n

James lives 11.5 miles from the library. Key lives 100 times that distance from the nearest amusement park. How many miles does he live from the nearest amusement park?

A couch that regularly costs 975 is on sale for 390 what is the percent markdown

Jackson spent 2 2/3 hours skateboarding at 4 different parks this week. he spent the same amount of time at each park. how long did he skateboard at each park

You buy a game for $40, and the sales tax is $2. What percent of the game price are you paying in sales tax? CLEAR CHECK 4% 5% 8% 20%

Look back at the plans these students used to solve the word problem below. Who found a correct solution? The entire school, 250 students, went to the soap box derby. The Math Club went in 2 vans, and each van held 6 students.

Use prime factorization to find the gcf of 24,48

Find the median of 3,7,2,9,4,7,3,7,5,2

4x-4=4x + what equals no values of x

Rena spent 6 days reading her book completing the same fraction of the book each day, she read a total of 8/9 of her book what fraction of her book did she complete in 6 days?

Find a 15% tip on a restaurant bill of $32.60.