The equation y= 3.5x -210 represents the profit made by a manufacturer that sells products for $3.50 each, where y is the profit and x is the number of units sold. What is the profit in dollars when 80 units are sold?

Me with this one question, and i'll upvote the brainliest answer

The radius of the circle below intersects the unit circle at (3/5,4/5). what is the approximate value of theta? 0.6 radians 1.0 radians 36.9 degrees 53.1 degrees

Problem number 26 of the rhind papyrus says: find a quantity such that when it is added to of itself the result is a 15. the modern day equation that models this problem is x + x = 15. what is the solution to the equation? x = 10 x = 12 x = 15 x = 30