The histogram shows the number of hours volunteers worked one week.
What percent of the volunteers worked 8 to 15 hours?

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

there is no graph so i cant sorry

step-by-step explanation:

there were a lot of them but the first one to pop up on a google search was bts

here the answers ur welcome also plz mark as brainliest if someone else anwers