Answer:
1. A is d=1.75
Step-by-step explanation:
1a) 10.50=6d
1b) d= 1.75
2a) w is less than or equal to 35
2b) It would not make sense to have a bag that weighed zero or below.
3a) The tree grows 15 ft for every since it was planted.
3b) h(t)=70+15x