Two business partners, alan and rob, invested money in their business at a ratio of 6 to 7. bob invested the greater amount. the amount invested was $390. how much did each partner invest?

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.!