Help me Please im stucko n this question and I odnt know the answer

What is the y intercept of f(x)=(1/2)^x?

According to the data set, where should the upper quartile line of the box plot be placed?

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