A ruby throated humming bird flaps its wings 159 times in three seconds. How many times does the ruby throated humming bird beat its wings per second

The longest side of a right triangle is 15 cm long another side is 12 cm long what is the length of the third side

7.9*10^-6 in standard notation.

What is the answer to 7/12 plus 1/3

By recycling 1 ton of paper, 6,953 gallons of water are saved. How many gallons if water are saved by recycling 4 tons of paper?

How many different ways can 4 rolls of film be selected from 50 rolls? (Permutation and combination question)

A triangle has side lengths measuring 3x cm 7X cm centimeters and h cm. Which expression describes the possible values of H in cm?

1) Airplanes are often used to drop water on forest fires in an effort to stop the spread of the fire.

Mrs. Gold filled the tank in her truck with gasoline. She puts gallons of gas in the tank at the cost of $2.16 per gallon. If Mrs. Gold paid the cashier with $100 how much money did she get back? (Show your work)

Monica uses the distributive property to write and equivalent expression to 63+28. Which expression did Monica write? A. 9 (7+3) B. 3 (21+25) C. 7 (9+4) D. 3 (60+25)

So far this season, John scored 4 goals and missed on his 16 other shots on goal. What is the experimental probability that John will score a goal on his next shot?