A certain herb is said to be effective in treating depression. A group of researchers
randomly assigns 200 patients with major
depression to either take the herb or a
dummy pill that looked and tasted the same.
This is an example of
A An Obsenational Study
B. Contro ed Experiment
C. A survey

14. (05.02 lc) what is the value of y in the solution to the following system of equations? (5 points) 2x + y = −4 5x + 3y = −6

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

Janice determined there were 10 possible outcomes when tossing two coins and spinning a spinner numbered 1 through 6. what is the correct number? what might have been janice's error?