The following data are accumulated by Lone Peak Inc. in evaluating two competing capital investment proposals:

$3$D Printer Truck

Amount of investment $$84,000$ $$28,000$

Useful life $4$ years $9$ years

Estimated residual value $00$

Estimated total income over the useful life $$11,760$ $$12,600$

Determine the expected average rate of return for each proposal. If required, round your answers to one decimal place.

$3$D Printer fill in the blank $1$

$7\mathrm{.}0$

$\%$

Truck fill in the blank $2$

$\_\_\_\_\_\_$ find this one