Trying to figure out how many 15pt into cups?

Which expression is equivalent to 4 square root 6 divided by 3 root 2

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest