The last answer choice is correct
So you can see the right angle is 90
400+30+8 is how you put 438 in standard form.
Answer:
x=3
Step-by-step explanation:
try different values on the line! plug them in and you'll see that every x value is 3!
(4x - 8) = 80/2
4x - 8 = 40
4x = 48
x = 12
answer
x = 12
