Charles owed $390 to his friend. on the first day charles paid his friend $12. each following week the amount charles paid his friend increased by the same amount. after 10 payments, charles had paid back the full amount. by how much did each payment increase?

During each minute of a comedy show, carlin laughs 55 times. carlin watches 33 comedy shows every day, and each show is 40 minutes long. how many times does carlin laugh every day due to the comedy shows?

Robin and john each a a 12 inch pizza about how many square inches of pizza did they eat? estimate how much pizza they ate

Caleb and emily are standing 100 yards from each other. caleb looks up at a 45° angle to see a hot air balloon. emily looks up at a 60° angle to see the same hot air balloon. approximately how far is the hot air balloon off the ground? a)44.2 yd. b)63.4 yd. c)73.2 yd. d)89.7 yd.