Im a bit stuck on this question. im fine when i need to simplify, but i guess its when i combine terms where i go wrong. may i get some ?

In the surface area formula for cylinders which expressionrepresents the lateral area

Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.

Hey hotel charges guests $19.75 a day to rent five video games at this rate which expression can be used to determine the charge for renting nine video games for one day at this hotel? pls