Hello can someone solve 2 of the 3 problems? thank u! Liam has $500 in his savings
account and withdraws $20 each
week. Leilani has $200 in her
account and deposits $15 each
week. How many weeks will it
take Leilani to have more money
than Liam?

Casey is deciding between two different online video services. One has a membership fee of $2 for every video streamed. The other has a membership fee of $50 with free unlimited streaming. If Casey streams enough videos, the costs are the same. How many would that be?

Martin and Mevlin are lifting weights. Martin starts with 15 lbs and adds 5 lbs every set. Mevlin starts with 60 lbs and subtracts 10 lbs every set. In how many sets will they use the same amount of weight?