You and a friend have decided to hoard paper products. You bought three packs of toilet paper and two packs of paper towels for $37.50. Your friend spent $41 on two packs of toilet paper and four packs of paper towels. How much does one pack of paper towels cost?

the answer is  $9.49

Step-by-step explanation:

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %

the answer is:

mean: 6

mad: 2.14