5 points You are newly appointed Technical Manager at the mine. Your General Manager tasked you with a decision to choose between sining shaft or using dump trucks to transporte from undergroud to surface of the mine. Dump trucks will have an operating costs of R$ 97,152 per month with the first cost of R711,236. Income is expected to be 66.616 per month, with expenses for utility, labour, taxes, etc expected to average 80 475 per month. Alternatively shaft will cost R2.757,787 to sink and R2997 per month to operate income is expected to be 923.491 if the salvage values are assumed to be 10% of the first cost for dump trucks and 35% of the first cost of the stat atter a year planning period determine annual worth for shaft sinking at an interest rate of 12% per year, compounded monthly 5 points You are newly appointed Technical Manager at the mine. Your General Manager tasked you with a decision to choose between sining shaft or using dump trucks to transporte from undergroud to surface of the mine. Dump trucks will have an operating costs of R$ 97,152 per month with the first cost of R711,236. Income is expected to be 66.616 per month, with expenses for utility, labour, taxes, etc expected to average 80 475 per month. Alternatively shaft will cost R2.757,787 to sink and R2997 per month to operate income is expected to be 923.491 if the salvage values are assumed to be 10% of the first cost for dump trucks and 35% of the first cost of the stat atter a year planning period determine annual worth for shaft sinking at an interest rate of 12% per year, compounded monthly