Write an expression that is equivalent to 24x + 36

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?

See attachment below and find the equivalent of tan(∠qsr)

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3