If twenty three is equal to x minus nine and x is equal to four tune what is the answer

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9