Hey i need ur help
plz this question is so hard​

Simplify the expression 10/11(22z) + (a+5) -1

How do you write something in scientific notation?

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.!