14. If we roll a six-sided die three times and record results as an ordered list of length 3, how many of outcomes contain exactly one 2 or exactly one 3?

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?

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1