5. caleb earns points on his credit card that he can use towards future purchases. he earns four
points per dollar spent on flights, two points per dollar spent at hotels, and one point per
dollar spent on all other purchases. last year, he charged a total of $9,480 and earned
14,660 points. the amount of money spent on flights was $140 more than twice the amount
of money spent on hotels. find the amount of money spent on each type of purchase.