Please explain equations used without using excel cells

#3 unanswered not_submitted A firm is must choose to buy the GSU-3300 or the UGA-3000. Both machines make the firm's production process more efficient which in turn increases incremental cash flows. The GSU-3300 produces incremental cash flows of $26,576.00 per year for 8 years and costs $98,374.00. The UGA-3000 produces incremental cash flows of $28,144.00 per year for 9 years and cost $126,648.00. The firm's WACC is 7.50%. What is the equivalent annual annuity of the GSU-3300? Assume that there are no taxes. Attempts Remaining: Infinity Submit Answer format: Currency: Round to: 2 decimal places