Answer:
4.1 calls
Step-by-step explanation:
The number of calls (c) that Roger expects to get as a function of how many inches of snow fall (s), is described by the following linear model:
[tex]c(s)=0.8s+0.29[/tex]
Therefore, when s = 4.7 inches, the number of service calls that Roger expects is:
[tex]c(4.7)=0.8*4.7+0.29\\c(4.7)=4.05\ calls[/tex]
Rounding to the nearest tenth, Roger will get about 4.1 calls.