Mark can clean his father's office in 30 minutes. His younger sister Lynn can clean the office in 40 minutes. How long will it take if they come together and clean the office

The radius of earth is 6378.1 km, which is 18,243.9 km less than the radius of neptune. find the radius of neptune

Solve 9x - 5y = 14 for y.

A jar holdsFraction 3 over 4 gallon of juice when it is Fraction 7 over 8 full. Which statement best describes the quotient of 3 over 4division sign 7 over 8?

Find 3 consecutive positive integers such that the product of the first and third integers is 48. Solve algebraically.

What is the common multiple for24,18 & 30

during the 2015 nascar races, the car completed 371.5 laps around the track. During the 2016 race, the racers completed 378.925 laps around the track. how many more laps were completed in 2016 than 2015. show your work

What was the sensitive, well-insulated tool Willard F. Libby used to date artifacts with known ages? X-ray machine Richter scale Geiger-Müller tubes petri dish

Is it possible to have congruent angles created by complementary angles

Which expression has a coefficient of 2?

Order the integers from least to greatest {-11,8,-13,-2,16}