Mr. fraser bought new shingles for his house for $3,500 using a credit card. his card has an interest rate of 17%. if he does not pay off his balance at the end of the month and he has no other charges, how much money will he owe on his credit card at the end of the first month?

"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?