a counselor wishes to examine the benefits of a parenting class on parenting skills. he decides to administer a questionnaire to the 10 parents who have attended the most recent class. how could this study be improved? select all that apply. a) administer a questionnaire to parents who have not attended the class. b) use a random sample of all patients, who have attended the class. c) increase the sample size. d) give parents some sample responses, prior to administering the questionnaire.

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.

investment b is an ordinary annuity with $3,909.64 in the account after one year.

step-by-step explanation:

x-150=475   x=625

step-by-step explanation:

if the bike after the sale ($150) is $475 then just simply add 150 to 475.