Half a gallon of orange juice can fill how many 16 ounce glasses 1 gallon= 4qt,1qt =2pt,1pt=16 oz

I’m stuck on this equation, anyone got the answer?

As a self-employed seamstress, you know that it takes 7 yards of material to make 3 jackets. you bought 15 yards of material to make 7 jackets. did you buy enough material? if not, how much were you over or under?

Which function has the vertex at (2,6)