Brian ate 1/5 of a pie. Then Colin ate 1/5 of the pie, and David ate 1/5 of the pie. How much of the pie was left?

A) 1/5

B) 2/5

C) 3/5

D) 4/5

Write the arithmetic series in summation notation 4+8+12+16

Tyler has 2 liters of water and drinks half of it. How many milliliters of water does he have left?

Vicky records the low temperature for three consecutive days. Between the first and second days the temperature increased 6 degrees. Between the second and third days the temperature decreased 3 degrees. On the third day the low temperature was - 6º.

What is the solution to the equation 1/2 x+3=2/3x+1?

Describe how the graph of each function is a translation of the of f (x) = 7/x

One day 10% of the students enrolled in the school were absent. There were 1,620 students present on that day. How many students were absent?

Which expression can be used to show a group of twenty seven players divided into three teams

2 Solve the equation for x: 3x - 5 = 5x + 2x. Show your work.

A weather satellite I'm circular orbit around earth completes one orbit every 5 hours. The radius of earth is about 6,400 km and the satellite is positioned 4,700 km above the earth. How far does the satellite travel in 1 hour?

As the student council treasurer, you prepare the budget for your class rafting trip. Each large raft costs $100 to rent and each small raft costs $40 to rent. You have $1,600 to spend.