Answer:
Second option is correct.
Step-by-step explanation:
We have been given the expression
We can write the term 64 as
Thus, we have
Now, use the exponent law
On simplifying, we get
This expression can be further simplified as
Second option is correct.
Given :
Service cost , c = $40.
Amount paid for each message , m = $0.02 .
To Find :
Equation represents the total cost C in dollars for a month when eric send t text message.
Solution :
Let , total cost be C .
It is an linear equation with slope equal to 0.02 and y-intercept equal to 40.
So ,
Hence, this is the required solution.