Help me i’ll give extra points

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

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.!