Aline on the coordinate plane passes through the points (7, -5) and (3, 11). a line that is perpendicular to the first line passes through the points (-3, -9) and (5, n). find the value of n.

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?