Which of these is a common feature for the lac and trp operon?

a. regulatory proteins bind to operator

b. regulatory proteins bind to promoter

c. regulatory proteins bind to repressor

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.!