Juan deposited $2,250 in the bank to celebrate the birth of his so. After three years, he received his statement and the bank he had $2,587.50 in the account How much interest did Juan earn in three years?

How much interest did Juan earn per year?

What was the interest rate?

What is the length and width of a 84.5 square foot rug? will mark

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.

What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?