Please help me this is for a test

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

To finance her community college education, sarah takes out a loan for $2900. after a year sarah decides to pay off the interest, which is 4% of $2900. how much will she pay

6cm10 cma conical paper cup has dimensions as shown in the diagram. how much water can the cup hold when full?