Answer:
multipacation
Step-by-step explanation:
it is not linear
X...................
7 pencils
8 sweet tarts
7*0.35=2.45
8*0.10=0.80
2.45+0.80=3.25
7+8=15
P=646
R=5%
T=2yrs
I=?
I=PRT/100
I= 646*5*2/100
I= 64.6