42 is what % of 40.
40 being the 100%

The question is kinda worded oddly, yet I believe the answer is 105%

This is because the value of just 2 within 40 is 5 percent. (I got this by dividing 40 by 100 and then simply multiping it with 5 to recieve the amount of 2).

With this information you would have to add the five percent to the 100 percent (which means the value would be 42).

Please do correct me if I am wrong^^

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.