Answer:

Step-by-step explanation:
42 ÷ 7 = 6
The Constant Of Proportionality is 45.2
Y-intercept when x = 0
so
y = 4
Answer:
1800
Step-by-step explanation:
15x12x10= 120x 15= 1800
The mean - add all the numbers (data) divided by the amount. 4+3+1+1+2+4+1 =16 16/7 = 2.28
The median - the middle number.
The mode - the most common number.