$4.$ Loaded$-$Up Fund charges a $12$b$-1$ fee of $1\%$ and an operating expense $0\mathrm{.}75\%.$ Economy Fund charges a front$-$end load of $2\%$ and an operating expense $0\mathrm{.}25\%.$ Assume the rate of return on both funds$$ portfolio $($before any fees$)$ is $6\%$ per year. How much will an investment of $$1,000$ in each fund grow to after: a$)1$ year? b$)3$ years? c$)10$ years?