ANSWER
The dot product is 10.
EXPLANATION
The given vectors are (2,4) and (1,2).
If we have the vectors
u=(a,b) and v=(c,d)
Then the dot product of the two vectors is given by

This implies that,

This simplifies to;

Answer:
200 minutes, cost $44.00
Step-by-step explanation:
x = minutes
14 + .15x = 22 + .11x
.04x = 8
x = 200 minutes
14 + (.15*200)
14 + 30 = 44
22 + (.11*200)
22 + 22 = 44
10/1
3/8
7/1
12/3
80/2
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