Find the value of k. Then find the angle measures of the triangle.
2k
45°
ko
Sum of angle
measures: 180°

What is the base of 1/9 to the power of 2

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

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.