Plot G(−8,−2), H(−1,−2), J(4,3), and K(4,8) in a coordinate plane. Are GH and JK congruent? please help

What is the measure of angle x? answer

What is the value of x? enter your answer in the box.

The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?