Answer:
it's
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
a is the answerStep-by-step explanation:
20+64=84
40+44=84
74+10=84
30+54=84
Step-by-step explanation:
(pls mark brainliest if u can)
:D