What is the y-coordinate of the solution to this system of equations? y= -3x + 5
5x - 4y = -3

What are the solutions to the equation 4x2+3x=24-x

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.

Find the value of x. give reasons to justify your solutions! l, m ∈ kn