Answer:
Compound interest is calculated by;
Initial amount x (100%xinterest%)^(years)
My workings which I also checked with another and they agree doesn't come back to your options. But closest answer is B.
Step-by-step explanation:
$450x(1.048^4) = $542.82
$750x(1.0375^4) = $868.99
$542.82 + $868.99 = $1,411.81
A:1.23
E: note that 125= 5^3 thus, log_b (125) = log_b(5^3) we can now simplify using the rule log_b(a^c) = c • log_b (a) log_b (5^3) = 3 • log_b (5) since log_b (5) = 0.41, we know that 3 • log_b (5) = 3•0.41 = 1.23
Glad to help :D