Answer:

Step-by-step explanation:
d = 
d = 
d = 
Answer:
slope of a line is given by -A/B
Here A=5 and B= -3
so , when we plug in the values: -(5/-3) = 5/3
five thirds lol.
Answer:
The score is 66
Step-by-step explanation:
Say the unknown score is x
Average = Total score/no of occurrence
78 = (x + 76 + 74 + 76 + 80 + 83 + 91)/7
78 × 7 = x + 76 + 74 + 76 + 80 + 83 + 91
546 = x + 480
546 - 480 = x
66 = x
∴ x = 66
Integers I believe :) hope this helps