The cost of internet service per month is $28.55 .
What is expression?
In mathematics, an expression or mathematical expression is a **finite combination **of symbols that is well-formed according to rules that depend on the context.
Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax .
Given is that two years of local internet service costs $685 , including the installation fee of $85 .
We can write the cost of internet service per month as -
{x} = {685/(2 x 12)}
{x} = {685/24}
{x} = 28.55
Therefore, the cost of internet service per month is $28.55 .
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$25 per month
685= 2x + 85 685 - 85 = 2x 600 = 2x 600/2 = x 300/12 (12 months in a year) 25 = x
The monthly fee for the internet service is $25, after deducting the installation fee from the total cost. This calculation is based on the total service cost being divided by the number of months over two years. Therefore, the internet service cost effectively translates into a monthly charge of $25.
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Jawaban:C. 2¹⁰Penjelasan dengan langkah-langkah:4⁴+4⁴+4⁴+4⁴ = 4×(4⁴) = 4⁵ = (2²)⁵ = 2¹⁰