1. Edward goes to the store for back to school shopping. He buys 4 new
shirts and a pair of jeans. The jeans were on sale for $20. The shirts all
cost the same amount. He spent a total of $52. How much did a single
shirt cost?
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Part a: solve –mk – 120 > 95 for m. show your work. (4 points) part b: solve 2c – 9f = 45 for f. show your work. (6 points)

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.

Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. the design of the study justifies the assumption that the sample can be treated as a simple random sample. use the data to construct a 99% confidence interval estimate of μ, the mean duration of game play. 4028 4316 4816 4650 4036 5010 4833 4331 4307