1. What is Abby's total spent on transportation?

2. How much should she spend on transportation, based on the Spending Guideline of 11%?

3. How much is her spending over or under the Guideline?

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9

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

Are these right ? plus what is the answer for number