It takes trevon ten hours to clean an attic. cody can clean the same attoc in seven hours. find how long it would take them if they worked together.

I don't know how to find the value of the missing variable

There 10 people inside the house then the house caught on fire but only 2/3 escaped how much is still in the building?

The Edison Lightbulb Company tests 5% of their dailty production of lightbulbs. If 500 bulbs were tested on Tuesday, what was the total number of bulbs produced that day?

Which represents the solution (s) of the system of equations, y = x2 - 4x - 21 and y = - 5x - 22? Determine the solution set algebraically. (-1, - 17) (1, - 27) (-1, - 17) and (1, - 27) no solutions

How many pounds are in 2.5 ounces

If there is an increase in the money supply that causes money to lose its purchasing power and prices to rise, what is this called?

Find the x - and y-intercepts of 3/5x + 1/3y = 1/15

A block of wood has a mass of 1.76 g and a volume of 2.2 cm3. What is the density of the block of wood?

Donna is planning to take a trip to Spain that will cost $2,927. She has already saved $1,852. To earn the rest of the money, Donna will mow lawns for $25 per lawn.

Cookies are on sale! Today each cookie costs $ 0. 7 5 $0.75 less than the normal price. Right now if you buy 7 7 of them it will only cost you $ 2. 8 0 $2.80! Write an equation to determine the normal price of each cookie (c) (c).