Answer:
x<1
Step-by-step explanation:
10x + 80 < 90
10x < 90 - 80
10x < 10
x < 1
Explanation:
To find the value, put 320 where x is and do the arithmetic.
f(320) = 0.11·320 +43 = 35.20 +43 = 78.20
The meaning is described by the problem statement:
"how much Derek pays for phone service" for "the number of minutes, [320], used for international calls in a month."
Derek pays 78.20 for 320 minutes of international calls in a month.
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The units (dollars, rupees, euros, pounds, ...) are not specified.
You can solve this by making a proportion.

you cross multiply and divide to solve this. your answer is 8.
Answer:
-1/1
Step-by-step explanation:
it's negative 1 over one because the graph is constantly going down but still to the right side and the line is touching every corner of the boxes
D because y=3x-2
Y+2=3x
Y+2/3=x