Answer:
simplify the equation into 6x^2-x+8-x^2-2, then subtract. the answer is B.
Step-by-step explanation:
Q.17)

Q.18

Q.19

Q.20

Q.21

For the 17 times 5 part, a easy way to do it is to times 17 by 10, then divide by 2. (since 5 = 10 divided by 2)
So 17 x 10 = 170
170 / 2 = 85
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If you have any questions, don't hesitate to ask : )
I just figured it out so I’ll answer it on this account lol.
Q1 = 32, Q2 = 45, Q3 = 52
Interquartile range = 52 - 32 = 20
Range = 68 - 21 = 47
Answer: Y=-3x+5
Explanation: