Peter babysits his sister on Monday and Friday. He babysits for his neighbor 40% of the days Monday through Friday. He babysits for his sister and his neighbor on different days. On the weekend, Peter babysits 50% of the days. How many days does Peter babysit each week?

3 days of the week.

Step-by-step explanation:

Well they removed my answer even though it was correct.

Monday - Friday = 5 days. If you divided 40 by 100 you get .40 which is forty percent in decimal form. 5 * .40 = 2 days.

Weekend is 2 days. If you divide 50 by 100 you .50 which is fifty percent in decimal form. 2 * .50 = 1 day.

Thus he babysat on 3 days of the week.

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)