Since beginning a regular exercise routine, Anna eats $2,700 calories each day, which is a 20% increase over her daily caloric intake prior to beginning the exercise routine. How many calories did Anna consume each day before participating in her regular exercise routine?

Seth practice piano for 1 1/3 hours on saturday and 5/6 hour on sunday for much longer did he practice on saturday than on sunday?

43lbs of tomatos cost $387. how much would 41lbs cost

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.