Answer:
7
Step-by-step explanation:
This is how it is done. Let me know if you have questions...
Answer:
A or D
Step-by-step explanation:
because I dont know what the experiment is just that it was grown differently
78×.33=25.74 busses are new
25.74+15=40.74 new busses
78+15=93 total busses
40.74/78=0.5223076923= 52% will be new with the new 15 busses
How are we supposed to help with this what the heck??