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?

How to solve 5 (p + 6) = 8p

Write the expression as a product: (x+3) 2-1

How to divide 33 photos into two groups so that the ratio is 4 to 7

Of the 30 students in the sixth period math class, 8 are also in the same fourth period science class.

Use elimination to solve each system of equations. 2x - y = - 1 3x - 2y = 1

What are the coefficients, constants, factors and variables in the expression (2x + 15) (9x - 3) ?

42.5% of what is 20.57

A delivery person uses a service elevator to bring books up to an office the delivery person 160lb and each box of books weighs 60lb the maximum capacity of the elevator is 1230lb

If you flip a coin 300 times how many times would you expect the coin to lands head up? Explain your reasoning (write in complete, mathematically precise sentences).

What is 305 divided by 5 using the distributive property in division without remainders