If b = the number of blue bikes, which algebraic expression represents the
phrase below?
the sum of the number of blue bikes and the 9 red bikes
o a. d.9
o oo
o b. b-9
o c. 6+ 9
d. 6: 9

step-by-step explanation:

question

what is the value of the third quartile of the data set represented by this box plot? a. 19 b. 21 c. 26 d. 29

answer

c

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.