I NEED HELP PLEASE IM BEGGING YOU PLEASE DOING A GIVE AWAY LATER I PROMISE TO GOD BUT ITS A SURPRISE

What is x and y (use substitution? ) 5x+3y=38 and y=3x+8?

Let the closed interval [a , b] be the domain of function f. the domain of f(x - 3) is given by (a) the open interval (a , b) (b) the closed interval [a , b] (c) the closed interval [a - 3 , b - 3] (d) the closed interval [a + 3 , b + 3]

Given: ∆mop p∆mop =12+4 3 m∠p = 90°, m∠m = 60° find: mp, mo