5. which of the following represent a line perpendicular to y = 2x + 7?
1. y = 2x - 7
* ii. y =-*-
iii. y + 5 = -(x + 3)
a. i only
b. ii only
c. ii and iii d. none of the abo

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Sam is picking fruit from a basket that contains many different kinds of fruit. which set of events is independent?

The mass of a marine organism, in pounds, p years after it is born is given by the polynomial function r(p) = -4p2 + 300p. find the mass when p = 20 years.