A helicopter descended 145 m to observe the density of the population during the Centennial celebration at the Luneta. It leveled off 230 m. what is the original altitude?

At the skate park, an average of 126 bicycle per day are rented in october. this number is 10% less than the average number of bicycles rented per day in september. on aberage, how many bicycles are rentes per day in september. a. 113 b. 140 c. 139 d. 135

Liam's parents are driving three times as fast as liam is biking, but they left later than he did. if his parents caught up with him two hours after he left, how much later than liam did they leave?

Which of the following is the correct ratio for converting kilograms to grams