Five sisters each bought matching scarves and two pairs of socks. the scarves were priced at 12.00$. if the total bill for all five sisters is $125.00, what was the price of one pair of socks

Plz which expression is equivalent to the expression below?

Anyone know? will mark brainliest if correct

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.