Help!

Convert the rectangular equation into a polar equation.

a) r= 8cos theta

b) r= sqrt8 cos thete

c) r=8 sin theta

d) r= sqrt8 sin theta

Ineed to know the answer right now! !

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.!

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.