can someone help me with this problem question ?? Thank you

this is mangerial acc btw

QS 129 (Algo) Computing investing cash flows LO P3 Indicate the effect each separate transaction has on investing cash flows. (Amounts to be deducted should be indicated with a minus sign.) a. Sold a truck costing $45,000, with $24,000 of accumulated depreciation, for $10,000 cash. The sale results in a $11,000 loss. b. Sold a machine costing $12,600, with $9,000 of accumulated depreciation, for $7,000 cash. The sale results in a $3,400gain. c. Purchased stock investments for $21,000 cash. The purchaser believes the stock is worth at least $32,000