I need help
Y=x+4
y=3x-1

x=2.5, y=6.5

Step-by-step explanation:

Y=x+4  ,y=3x-1

x+4=3x-1

2x=5

x=2.5

y=x+4=2.5+4=6.5

why do wages differ across industries

step-by-step explanation :

micro economists are concerned with economics on an industry or individual firm basis.

macro economists are concerned with national and international level

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .