What are the problems of experimental survey?

What is the slope of a line that is perpendicular to y = 3x + 1

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min if they did not stop driving, how many miles could kyle and elijah drive in a whole day? ? 1 day = 24 hours. plzzz i will give you 100 points