Answer:
option C is the right answer
c) 70 and 60
4x + 3y = 24
3y = - 4x + 24
y = −4x+243
y = −4x3 + 8, t
Use the formula.
P=P'(1-R/100)^T
where,
P=final rate
P'=initial rate
R=Rate of Depreciation
T=Time.