Answer:
B) f(x) = 7(1.06)⁸
Step-by-step explanation:
f(x) = ab^x
a = 7
b = (106/100) = 1.06
C. 2 hours
50h= 190-45h
50h + 45h = 190
95h = 190.
190÷95= 2h
知りません