I dont know how to subtract 20 - 19/4

Sally can paint a room in 5 hours while it takes Steve 8hours to paint the same room. How long would it take them to paint the room if they worked together?

A grocer's shop sells carrots, onions and cucumbers. The ratio of carrots to onions is 3:4 The ratio of onions to cucumbers is 6:5. Work out the ratio of carrots to cucumbers. Write the ratio in its simplest form.

How many solutions does - (9x+12) = - 8x - (x+3) have

What are two decimals whose product are close to ten?

How long will it take u to drive 120 miles at the speed of 15 miles per hour

Roy's Toys received a shipment of 100,000 rubber duckies from the factory. The factory couldn't promise that all rubber duckies are in perfect form, but they promised that the percentage of defective toys won't exceed 5/%5%.

Tell whether this is a linear relationship, is not one, or it's impossible to tell. Stan earned $15 on Monday, $45 on Tuesday, Wednesday and Thursday, and $60 from Monday to Friday this week.

Solve the equation p=8L+5w for L. A). L = (p-5w/8) B). L = (p+8w/5) C). L = (p+5w/8) D). L = (p-8w/5) E). L = (p+5w/8)

Find an equivalent fraction for each given fraction 24/100

Taylor ran 57 minutes on Tuesday and 48 minutes on Saturday. Mark ran 62 minutes on Tuesday and 53 minutes on Saturday. Taylor said they ran the same total time and mark said they didn't. Who is right? Explain using comparative relational thinking.