Ajazz concert brought in 122,000 on the sale of 8,000 tickets .if the tickets sold for $10 and $20 each, how many of each type of tickets were sold?

c

Step-by-step explanation:

To get at least $420 with the babysitting job, you have to work 35 hours a week which if you work 5 days a week, you will have to work 7 hours a day, but if you were working 7 days a week, you would have to work for 5 hours a day.

To get at east $420 with the cleaning job, you have to work 28 hours a week. If you worked 5 days a week, you would have to work 5.6 hours a day, but if you worked 7 days a week, you would only have to work 4 hours a day.

Either way, the cleaning job pays more per hour, which means that you would have to work less hours to get the same amount of money that you would get for babysitting.