Answer:
last one is the answer brother
A = P(1+r/12)^12t, where A = amount after two years, P = Initial amount = $1000, r =apr = 4.2% = 0.042, t = period = 2 years
Then,
A = 1000 (1+0.042/12)^12*2 = $1087.47
45 + 30 = 15(3 + 2) = 15(5) = 75
The answer is 1x10^2 or just simply 10^2.