Can someone explain to me why this is right?

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

Find cot x if sin x cot x csc x = √2

Complete the conditional statement. if a + 2 < b + 3, then a < b b < a a – b < 1 a < b + 1