Answer:
121 cm
Step-by-step explanation:
12x13=156
7x5= - 35
________
121
Answer:
9/50
Step-by-step explanation:
Use the formula,
I = Prt
P = Principal amount = 400
I = interest = 18
r = annual rate
t = time in years = 9/12 = 3/4
so,
18 = 400*r*3/4
r = 0.06
so the annual interest rate is 0.06 or 6%.
