HELP FAST I ONLY GOT 8 MINUTES

The water has been on the stove y=9.5x+62.1 after how many minutes will the tempature be 138.1 f

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

Arestaurant needs to buy thirty-seven new plates. if each box has five plates in it, how many boxes will they need to buy?