John and alicia are asked to clean the barn. john can clean the barn by himself in 3 hours and together they can clean the barn in 1 7/8 hours. how long would it take alicia to clean the barn by herself?

The sum of 3x2 + x - 7 and x² + 10 can be expressed as

Paige bought five bags of candy for halloween. forty eight children visited her home and she gave each child three pieces of candy. at the end of the night she till had one bag of candy. how many pieces of candy were in each bag

Use slopes and y-intercepts to determine if the lines y=-x2+14 and 3x-4y=-1 are parallel.

To simplify 8.3 - 4 15 (6.1 + 12), which operation must be performed first

Find the area of a 7-gon with side length 10. Round to a whole number.

Find the common ratio for the following sequence 9,6,4

A rectangular courtyard 3.78 metres long and 5.25 metres wide is to be paved exactly with square tiles, all of the same size. What is the largest size of the tile which could be used for the purpose? (A) 14 cm (B) 21 cm (C) 42 cm (D) None of these

650mL = how many ounces?

Which is the more precise measurement? Explain. 6 hours, 14 days 14 days, because an hour is a smaller unit of measure than a day 14 days, because a day is a smaller unit of measure than an hour 6 hours, because a day is a smaller unit of measure

What is the mean of 0,1,3,2