Lowest common multiple of 21 and 4 show all the numbers

The amount of caffeine in our bodies cuts in half every hour (50%). Most energy drinks contain around 200 milligrams of caffeine. How many milligrams of caffeine are left after 3 hours?

John is a new college graduate working at his first job. After years of living in an apartment he has decided to purchase a home. He has found a great neighborhood from which he can walk to work.

What is greater than 3/4

In it 34/50 of the coins are quarters what percent of the coins are quarters

34% of students from a school survey said they worked part-time. If 272 students said they worked part-time, about students were surveyed

Becky is using the expression 2z + 3 to represent the number of chairs in her classroom. There are twice as many chairs as tables, and there are three extra chairs in the back. What does z represent?

The last line of a proof represents the given information. the argument. the conclusion. the assumptions.

The question is solve the standard algorithm

Which is the decimal equivalent of one half?

Charlie saves $21.45 each month for 6 months. in the seventh month, he saves $10.60. how much money will charlie saved after seven months