Answer:
B
Step-by-step explanation:
To find the constant of proportionality between y and x, divide 
for all given values of the chart. If you get the same number, then that is the constant. If they are all different numbers, then one does not exist for that function.
Using the method above, you should get:
Chart A = 2/5
Chart B = 1/5 (Correct Answer!)
Chart C = N/A
Hope this helps!
Answer:
$1.80
Step-by-step explanation:
Use formula
where I is interest, P is total principal, i is rate of interest per year (as decimal) and t is total time in years.
In your case,
I=$36.45, t=312, i=0.065, then
X=7, y=6. that’s your answer!
