A person can run 100 meters in 20 seconds. What is his running speed in kilometers per hour (km/h) ?

A. 18 km/h

B. 20 km/h

C. 24 km/h

D. 15 km/h

Evaluate - 2/3 to the 4th power

Explain x y axis chart

The number of bees that visit a plant is 600 times the number of years the plant is alive, where t represents the number of years the plant is alive. What does the expression 600t represent? The expression represents the A.

F (-9) = 2-1/5. What is the solution

Julian wants to build a rectangular pen. He plans to use a wall of his barn for one side of the pen. He has 76 yards of fencing material. What is the maximum area that can be enclosed?

Solve for r. 4*r=1/2 Write your answer as a fraction or as a whole or mixed number

24 songs to 78 songs

Mai worked for 12 hours each day for 8 days. Then the next day she worked 7 hours. How many hours did Mai work in all?

Using the expression 7x = 3y, if y is 35, what is x

10x^2-3x-1 axis of symmetry