My daughter needs on these two questions and i have know clue what the answer is or how to explain the answer to her.

Which of the following is the sum of 3 1/6 + 6 3/8?

Find all the angles that satisfy the equation cos(θ)=32

The unpaid balance on a mastercard charge was $1,056.23. during the month, payments of $300 and $250 were made and charges of $425 and $274.16 were added. if the finance charge is 1.2% per month on the unpaid balance, find the new balance at the end of the month. $1,205.39 $1,218.06 $918.06 $1,768.06