Alvin wants to fill 70 bottles with petrol. Each bottle is filled approximately 420ml petrol. Estimate the volume, in liter, of petrol needed to fill all the bottles.

In triangle PQR, p equals what. 1) (r sin P) / sin Q 2) (r sin P) / sin R 3) (r sin R) / sin P 4) (q sin R) / sin Q

The time it takes to double the balance in an account varies inversely with interest rate. If you invest $1,000 at 6% it will take 12 years to double your money. Find the time it will take to double your money at 4 %

A scuba diver is swimming 15 feet below the water's surface. The diver swims up slowly at 0.5 feet per second for 4 seconds; and then stops to look at an eel. Finally, the diver swims up for 3 more seconds at 0.4 feet per second.

Distributive property: Example: 6 (2x - 3) = 12x - 18 "Combine like terms" means 3x + 4x = 7x. But we cannot add 3x + 4. Simplify, don't solve for x, just simplify, write it with only one x and no parenthesis: 2 (4x - 1) + 3x =

steven has 1/3 of a package of biscut mix left he will use equal parts of the leftover mix to make three batches of biscuts if he uses all of the mix what fraction of the original package will he use for each batch?

What is the least whole number that is a solution of 2r-4.4>8.6?

John has a roll containing 24 2/3 feet of wrapping paper. He wants to divide it into 11 pieces. First, though, he must cut off 5/6 foot because it was torn. How long will each piece be?

Bruce has a pet worm that fell into a well the well is 26 feet deep each day the worm climbs up 8 feet, each night, it slides back down 2 feet

Which expression could be used to determine the product of - 4 and 3 and one-fourth? (negative 4) (3) times (negative 4) (one-fourth) (negative 4) (3) + (negative 4) (one-fourth) (3) (negative 4) times (3) (one-fourth) (3) (negative 4) + (3)

How were Renaissance artists able to support themselves and their work?