If 6n + 7 = 31 what is n?

30 = −5(6n + 6)

r + 11 + 8r = 29

The tickets to an amusement park cost $54.25 each. How much will 6 tickets cost?

One morning, the temperature outside was − 3°F. By 5:00 p.m. the temperature had decreased 15°F. What was the temperature at 5:00 p.m.?

Lorraine threw a football 9.89 meters. Belinda threw the football 12.20 meters. How many meters farther did Belinda throw the football than Lorraine?

George usually takes 1.5 hours to mow his neighbor’s grass and trim the bushes. Today he has only 0.75 of the usual amount of time to complete the job. Which operation describes how to find the amount of time George has to complete the job?

Howie bought 4 binders for $2.14 each, a pack of pencils for $1.25, and a new coat for $19.95. How much money did Howie spend altogether?