Cannot get this at all im scared to fail-

Which of the following is true for the relation f(x)=2x^2+1

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

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.!