Answer:
Non terminating
Step-by-step explanation:
4/5=0.8 so non terminating
Hope this helps :D
Answer: 
Step-by-step explanation:
To solve for b, we want to use the Pythagorean Theorem as given.
b and 7 are the legs, and 12 is the hypotenuse.
[exponent]
[subtract both sides by 49]
[square root both sides]

Now we know
.