Abag contains 2 white marbles abd six black marbles.

a. find the probability of picking out 2 black marbles in a row if the first marble is returned to the bag before the next marble is picked.

b. find the probability of picking two black marbles in a row if the first marble is not returned to the bag before the next marble is picked.

c. find the probability of picking out a white marble, then a black marble if the first marble is not returned to the bag.

Match the scale and the actual area to the area of the corresponding scale drawing. scale: 1 inch to 4 feet actual area: 128 square feet scale: 1 inch to 7 feet actual area: 147 square feet scale: 1 inch to 8 feet actual area: 256 square feet scale: 1 inch to 5 feet actual area: 225 square feet area of scale drawing scale and actual area scale drawing area: 3 square inches arrowright scale drawing area: 8 square inches arrowright scale drawing area: 4 square inches arrowright scale drawing area: 9 square inches arrowright

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x