a contractor finds that crew A takes 5 1/2 hours to construct a retaining wall and crew B can do the same job in 8 1/2 hours. if crew A and crew B work together how long will it take them to construct the retaining wall

What is 60 over negative 15?

A spinner has 16 equal sides section 12 other side sections are purple what is the probability ti The Spinners will land on purple use words to describe the proper debility

Hard question! Jessica is selling books during the summer to earn money for college. She earns a commission on each sale but has to pay for her own expenses.

Translate the following sentence into an equation. Use x to represent an unknown number. Do not solve. The sum of twice a number and 19 is equal to five times the number. Write an equation for the given conditions

Chloe is painting a room. She uses 1/2 gallon of paint to cover 1/3 of a wall. If the walls are all the same size, how much paint will she need to cover one wall

28 grams x 10$ = $280 or $200 street price ...

The league championship 800 meter race has 9 runners. In how many different ways they place first, second and third?

Rectangle x measures 7cm by (x+1) cm. Rectangle B has dimensions of (3x+6) cm and 4cm. The area of rectangle X is half the area of rectangle Y. Calculate the lengths of the sides of the rectangles, and hence, their areas.

A gym membership costs $50 to join and $12 each month. write and use an algebraic expression to find the cost of the gym membership for 6 months.

Find the surface area of a cylinder with radius 7 feet and height 16 feet.