Bob and Dewei had to paint a house. Bob could paint twice as fast as Dewei. They would take a total of 12 hours to paint the entire house together. How long would Bob take if he was to paint the house by himself?

The volume of a sphere with radius r is 4 3 πr 3. what is the volume of a sphere with radius 5

5 There is a bag filled with 3 blue and 4 red marbles. A marble is taken at random from the bag, the colour is noted and then it is not replaced. Another marble is taken at random. What is the probability of getting 2 blues?

If two triangles are similar, which pair of conditions must be true?

At a certain middle school, every home room teacher is assigned 28 students. there are 3 teachers that do not have a homeroom. is the number of students at this school proportional to the number of teachers?

F (x) = 1/3x4x^ How do I find F (4)

How many centimeters are equivalent to 5 feet? (12 in = 1 ft)

5 13/20 as a decimal

Factor out the largest term possible (Show work) -18a^2 m^5 + 12a^4 m^3

When two fractions are between 0 & 1 half how do you know which fraction is greater explaina

Values of x and g (x) are given in the table below. for what value of x in the table is g ' (x) closest to 3?