Determine if the lines are parallel, perpendicular or neither show steps x-5y=30 and 10y=2x+90

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it.how many multiple-choice questions are on the test?

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?