What is 4.2 as a fraction

A chemist is conducting an experiment which involves a certain chemical reaction. He begins the experiment with 824 milliliters of the chemical, which is consumed by the reaction at a varying rate that is no more than 12 milliliters per minute.

How can u split 90$ in to 4 friends

An experiment consists of rolling two fair number cubes (dice). Find the probability of tossing a sum of 6 on the number cubes.

Which of the following consists of a single element or type of compound? a) Heterogeneous mixture b) Homogeneous mixture c) Impure substance d) Pure substance

A boat's crew rowed 48 kilometers downstream, with the current, in 4 hours. the return teip upstream, against the current, covered the same distance, and it took 8 hours. find the crew's rowing rate in still water

Paul bought a discount card for the bus. The card allows him to buy daily bus passes for $1.70. After one month, Paul bought 12 passes and spent a total of $25.40. How much did he spend on the student discount card?

Have students write a story that can be solved by finding the sum of 506,211 and 424,809 have them solve the problem

Robert wants to put lights around of his deck. The deck is 49 feet long and 23 feet wide. How many yards of lights does he need?

What is the simplified form of the following expression?7m^2+6.5n-4n+2.5m^2-n

1.428571429 rounded to the nearest tenth