Multiply 3 2/3×3/4 express your answer in simplest form

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

What is x3+3x2−16x−48 divided by x−1?

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min if they did not stop driving, how many miles could kyle and elijah drive in a whole day? ? 1 day = 24 hours. plzzz i will give you 100 points