Pls help me
I really need help so I can not go through summer school pls

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.