Kyle has a box that contains three types of coins, quarters, dimes, and nickels. There are a total of 100 coins in the box. Without looking, Kyle picked out a coin, recorded which type it was, and then put it back in the box. His results are recorded in the table below. According to his data, about how many nickels should be in the box?

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a. the profit when the unit price is equal to 0b. the unit price(s) when the profit is equal to 0c. the profit when the unit price is greatestd. the unit price(s) when profit is greatest

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

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.