Your sister can clean the entire house in 3 hours. However, your brother takes 5 hours to clean the house. Determine how long it would take for them to clean the house together.

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.