Answer:
I am not sure about this one, but probably 5
Step-by-step explanation:remember the square is 90 deg. and you already have 50 so you need 40 more and 8 times 5= 40
Answer: x=5
Step-by-step explanation:
8x+50=90
then you use the subtraction property of equality to get 8x=40
then you use the division property of equality to get x=5
