What is the value of x in the solution to this system of equations? 3x−y=22 3 x − y = 22 y=−5x+32

Zoe placed colored blocks on a scale in science class. each block weighed 0.8 ounces. the total weight of all the colored blocks was 12.8 ounces. how many blocks did zoe place on the scale? write and solve an equation to find the answer.

Which of the following circles have their centers in the third quadrant? check all that apply.

Solve for x where 0 equation: cot^2x+2cotx+1=0