To complete a job, it takes: 2 hours for Alice and bob, 3 hours for Alice and Charlie and 4 hours for bob and Charlie. How long will the job take if all three work together?

4/7 of students at a school are boys. If there are 2723 students at the school, how many are girls?

How do u find the height of a cone

2.5% of what number is 2.21

Calculate the probability of drawing a red card or any jack on a single random draw from a standard 52-card deck.

What is the solution equation of through (2,2), slope=2

The total national health care expenditures H, in billions of dollars, can be modeled by H=1500e0.053t where t is the number of years past 2000. What were total national health care expenditures in the year 2000?

A student has completed 14 problems on a test. These problems make up 28% of the test. Select from the drop-down menu to correctly identify the total number of problems on the test.

List the measurements below from from smallest to largest. 7cm 18mm 1m 3dm

Distributive Property to simplify the expression 7 (1-8n)

A manufacturing operations consists of 12 operations. However, five of the 12 machining operations must be completed before any of the remaining operations can begin. Within each of these two sets, operations can be completed in any order.