Choose the correct simplification of 9x ^ 2 * (4x + 2x ^ 2 - 1) . (8x^ 4 +36x^ 3 -9x^ 2 18x ^ 4 - 30x ^ 3 + 9x ^ 2 36x ^ 4 + 18x ^ 3 - 9x ^ 2 36x ^ 2 - 13x ^ 3 + 9x ^ 2

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is

The salesperson earns a 5% commission on the first $5,000 she has in sales. the salesperson earns a 7.5% commission on the amount of her sales that are greater than $5,000. this month the sales person had $8,000 in sales. what amount of commission, in dollars, did she earn?