Help with number 27 can you explain how u got the answer

Question

apologiabiology · Answer

so you subsitute 275 for n in the equation 
 becaue the question says 'let n represent the number of text messages' so .15(n-250)+5=.15(275-250)+5 so we do the stuff in the parenthasees () first so .15(25)+5 
 multiply by .15 or 15/100 so and you get 3.75 3.75+5 you add 5 and get 8.75

apologiabiology · Answer

To calculate the answer for question 27, we multiply each number (1-6) by its corresponding weight and sum the results. This provides the final result of 2.60 years, indicating an average based on the weighted values given. The calculations involved basic multiplication and addition of the products. 
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Help with number 27 can you explain how u got the answer

Answer (2)

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