In an arithmetic sequence, u, = 12 and U 10 = 40. The common difference is d. Write down two equations in u, and d to show this information. b Find the values of u, and d. a c Find the 100th term.​

not solvable

step-by-step explanation:

we need more information, or at least an

$12. that is my answer.

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 %