If you get a 80, 80, 80, and 0 on your tests because you skip the last test, what does your 80 average turn into?

What is the quotient of 42/3 divided by 4 1/5

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?

Diane owes $387 to her brother. if she debits her bank account $161.25 a month to pay him back, how many months will it take her to pay off the debt?