Pls link in a chain was made from a cylinder that has a radius of 2 cm and a height of 20 cm. how much plastic coating would be needed to coat the surface of the chain link? use 3.14 for π.
251.2cm2
314 cm2
345.4 cm2
471 cm2

22. catie is starting a babysitting business. she spent $26 to make signs to advertise. she charges an initial fee of $5 and then $3 for each hour of service. write and solve an inequality to find the number of hours she will have to babysit to make a profit. interpret the solution.!