Mallory makes $10 per hour babysitting and $8 per hour working at the local grocery store. Last week she babysat for 6 hours. Her total gross earnings for both jobs was $180. How many hours did she work at the grocery store?
she worked for 15 hours at the grocery store because the 6 hours she babysat for got her 60$ so she made 120$ from the grocery store meaning she worked 15 hours there