If 2x - 5y – 7 = 0 is perpendicular to the line ax - y - 3 = 0 what is the value of a ? A) a =2/3

B) a =5/2

C) a = -2/3

D) a = -5/2

PLEASE HELP ITS REALLY URGENT AND WILL MARK BRAINLIEST!!!

Question 10jur's car can travel 340 miles on 12 gallons. jack's car can travel 390 miles on16 gallons. which person has the best mileage (miles per gallon) and what istheir mileage?

Two students were asked if they liked to read. is this a good example of a statistical question? why or why not? a yes, this is a good statistical question because a variety of answers are given. b yes, this is a good statistical question because there are not a variety of answers that could be given. c no, this is not a good statistical question because there are not a variety of answers that could be given. no, this is not a good statistical question because there are a variety of answers that could be given

The anwser cause i do not understand just plez