Astockbroker charges a 2.5% commission to sell shares of a stock for a client. find the value of stock sold by a broker if the commission was $660

The vertices of a triangle are a(7.5), b(4,2), and c19. 2). what is

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.

Can someone explain to me how to do