Find the percent of change for all three questions plz 1) 35 birds to 45 birds 2) 60 inches to 38 inches 3)$2.75 to $1.80

Pick the expression that matches this description: a polynomial of the 5th degree with a leading coefficient of 7 and a constant term of 6 (choice a) 7x^5+2x^2+6 (choice b) 7x^6−6x^4+5 (choice c) 6x^7−x^5+5 (choice d) 6x^5+x^4+7

Give all possible names for the line shown. calculation tip: lines can be written with either point first.

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%