The value of a car goes down by 10% each year. a car costs £40000 new. how much is it worth after:
ai) 1 year
ii) 2 years
b) after how many years is it worth less than its original price?
does the answer to part b increase, decrease, or stay the same when
ci) the cost of the new car is changed to £12000
ii) the rate of decrease is changed to 20%

"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?