Briana played a trivia game in which she lost 5 points for each incorrect answer and gained 10 points for each correct answer. if briana answered 11 questions correctly and 4 questions incorrectly, what was her total score?

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

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?

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths