Sally can paint a room in 8 hours while it takes Steve 9 hours to paint the same room. How long would it take them to paint the room if they worked together?

What is the diameter of a circle if the radius is 15 inches?

Chris has 2 pairs of black socks, 4 pairs of red socks, and 18 pairs of white socks in a dresser drawer. What is the probability that he will choose a pair of white socks, without looking in the drawer first? 75% 0.33 50%

Selena and $8.75 per hour or the other job it cost $3.50 to ride the bus to and from work write an expression that describes how much Selena has each day after 8 hours of work and paying her bus fare

A study group is to be selected from 5 freshmen, 7 sophomores, and 4 juniors. a) If a study group is to consist of 2 freshmen, 3 sophomores, and 1 junior, how many different ways can the study group be selected?

How to add and subtract radical expressions

Which is the completely factored form of 18x4 - 42x3 + 24x2?

What is P vs NP? Give an example?

Write two numbers that round to 500,000 when rounded to the nearest hundred thousand

What is 5 1/4 x 2 1/2 x 2 3/4 simplified?

A parabola has a vertex at (0,0). The equation for the directrix of the parabola is x = - 4. In which direction does the parabola open? up down right left