A≈0.79m² (Hope this helps)
So to find the mean you add up all the numbers (or the exam scores) which will get you 212 then you take the number and divide it by the total numbers in the set (how many numbers did you add up?)
212 divided by 8 is 26.5 which would be C. I hope this helps!
Y = 40x + 55
not sure bout the last one tho.. sorry :(
Answer:
add all of them together (x and y’s) the divide the sum by the amt of numbers
Step-by-step explanation:
