Answer:
20
Step-by-step explanation:
y=kx
X=2 & y= 10
10=2k
k=5
when y=100
100=5x
X=20
City a: 5+4+3+5+5+4+2=28 divided by 7=4. city b:3+6+7+3+8+3=30 divided by 6=5.
B)City a: 4, city b: 1.5.
that is all i can do.
0.30by0.50
Hope this helps
and I really need brainliest thanks!