1+8n+4n+1-2n show me the answer

Rosalia went on a long bike ride. The table shows how long she biked and the distance she traveled. Determine whether the relationship between hours biked and miles traveled is proportional.

A bag contains 8 yellow marbles and 40 green marbles. If a representative sample contains 2 yellow marbles, then how many green marbles would you expect it to contain? Explain.

One of the interior angles of a right triangle measures 65 degrees. What is the measure of the other two angles?

Trey is putting up fence around a 750 foot by 540 foot lot. How many feet of fence does he need?

A jogger ran at a rate of 5.4miles per hour, what's the joggers exact rate in feet per minute

In how many ways can six people line up from left to right from a group photo

If a climber climbs 0.25 miles per day how many days would it take him to climb 3.848 miles high?

What is 6 1/2 - 2 2/3 =

Olivia has 40 coins made up of quarters and dimes. Altogether they make $7.00. How many quarters does she have? How many dimes does she have?

the cost of nails varies directly with the number of pounds bought. If 4 pounds of nails cost $11.60, what is the cost of 3.5 pounds