For every 90 minutes of sleep, a person has one dream stage. rachel went to bed at 10: 00 p. m and woke up at 5: 30 a. m. how many dream stages did she likely have?

a. 5
b. 6
c. 9
d. 10

( let me know quick )

What is the shape of the height and weight distribution

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .

Aof 12 , we to a of 4 to on a .of 4 be ?