Answer:
17. 15
18. 8(this one I'm not sure tho what does the right one say)
19. 32
20. 5
Answer:
Mean: 33.3
SD: 32.8
Step-by-step explanation:
Answer: x = -1 y = 4 I got my answer by solving for one variable in the first equation and then substituting what I got for that variable into the second equation in place of that aforementioned variable then solving for the last variable.
Answer:
the threee lines represent-3x
and happy valentines day<3
