We are asked to find a function of the cost given the monthly fee and the costs per minute.
Let x be the number of minutes used, we need to multiply the number of minutes by the rate of cost per minute and add that to the monthly fee, like this

That gives us the function of the cost.
30+m= T for Total. umm sorry but I just have to have 20 characters to give you this answer
Answer:
$ 333
Step-by-step explanation:
a) 33 + m*1 = 33 + m
b) m = 300 miles
33 + m = 33 + 300
= $ 333
<span>-2.9x + 5.4y = 140.94
answer is </span><span>y-intercept is 26.1
cause when </span><span>y-intercept x = 0
</span>-2.9(0)+ 5.4y = 140.94
<span>5.4 y = 140.94
y = 140.94 / 5.4
y = 26.1
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