Express as a sum: 15-7
Please show work I'm confused on how you can express it as a SUM...
Thank you!

15 - 7 = 8

Step-by-step explanation:

8 + 7 = 15?

15 - 7 = 8

8 + 7 = 15

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 %

answer: the answer is b. i think hope i got it correct

step-by-step explanation: