Answer:
Measure of arc ZWX is <u>230°.</u>
Step-by-step explanation:
Given:
arc WX = 50°
Now
The diameter divide a circle into two equal parts
so

Since WZ is diameter of the circle.
substituting in above equation we get

Hence Measure of arc ZWX is <u>230°.</u>
Do the ride over run method and you should be good
Y=1.09(x-1)+1.49 where y is cost and x is in pounds we could further operate:
y=1.09x-1.09+1.49
y=1.09x+0.4 (note that the domain is x≥1)
I think the answer is the second one