The expression 27.50+ 0.11x models the monthly cost in dollars of a phone plan. In the expression, x represents the number of minutes you talk . What is the cost of the phone if you talk for 37 minutes that month ?

31.57

Step-by-step explanation: If x is 37, that would mean 0.11 x 37 and that equals 4.07. Then you would add 27.50 and 4.07 and get 31.57.

hi im bob : l

step-by-step explanation:

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.