rob Feldman can do a job in 3 hours, while karen requires 7 hours. how long will it take them if they work together

A student has some $1 and $5 bills in his wallet. He has a total of 13 bills that are worth $33. How many of each type of bill does he have?

What is a funcion in math term

30 boxes of melons and 4 melons in each bag. Each bag holds two melons. How melons are there in the store.

Line A: y = 1/2 x + 2 Line B: y = - 1/2 x + 7 Line C: y = 2x + 4 Line D: y = 1/2 x + 5/4 Which lines are parallel? A) A and B B) A and C C) B and C D) A and D

At a concession stand, seven hot dog (s) and four hamburger (s) cost $14.00; four hot dog (s) and seven hamburgers (s) cost $16.25. Find the cost of one hot dog and the cost of one hamburger.

Solve and graph the absolute value inequality 6b 4

Marley has 18 Yellow blocks and 24 pink blocks Marley wants to separate her blocks into equal Stacks without having any blocks left over what is the greatest number of blocks she will be able to create?

12.5% of what number is 20

Evelyn ate 1/2 cup of nuts and her brother ate 1/4 cup. If there were 2 2/3 cups of nuts in the container before their snack how many cups were left after they finished?

If RB = 4 and OR = 3, then OB =