Using the order of operations, what is the last calculation that should be done to evaluate 4(8 - 6)5² - 6 ÷ (–3)? 4(8 – 6)52 – 6 ÷ ) 4(2)52 – 6 ÷ (-3) 4(2)(25) – 6 ÷ (-3) 200 – 6 ÷ (-3) 200 – (-2)

Ican figure out 20 shares multiply by $117.98 =2359.6920 shares multiply by $124.32=2486.40then take 40 shares multiply by $128.48=5139.20after that i'm lost any be greatly appreciated.

Standard deviation of 19,29,21,22,23

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.