In mr. navarro's first period class, 7of the students got an a on their math test. in his ' 28 second period class, 28 of the students got an a. what fraction more of the students go an a in mr. navarro's first period class than i his second period class? write in simplest form.

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.!