If anyone here enjoys math and is interested in helping me, drop a snap or insta <3

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

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

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need