Please please help me *will give brainliest*

The circumference of a circle is 5 pi cm. what is the area of the circle?

What are the first 4 terms in the multiplication pattern given by the formula 2×4n

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.!