Please solve explaining each step, thanks in advance ))

Solve the following T-Bills auction: The Treasury wants to issue 3000 million euros in 6-month Treasury Bills. The non-competitive bids amount to 500 million euros. Competitive bids are: 725m at 99.96%,360m at 100.00%,600m at 99.97%,450m at 99.99%,1000m at 101.00% and 500m at 99.98% Calculate allocation, prices, implicit returns, percentage coverage of the marginal tranche and bid-to-cover ratio