If you roll a number cube 78 times how many times do you expec to roll a 3

Write the following as a base and exponent

What is the value of x in the following equation. -x ^3/2 = -27

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 drove in a whole day? ? 1 day = 24 hours. plzzz write a proportion i will give you 100 points