25 because you do 19 squared plus 16 squared equals 617, you do 617 rooted. It’s called pythagorus.
B. You can get this by factoring the bottom of the first expression and then cancelling the terms. Then multiply by the inverse of the second.
C. 2+3 = 5
1/12+1/12=2/12
So C would make sense because those all add up to the answer :-)
Answer:
b=17
Step-by-step explanation:
b=(45+6)/3
b=51/3
b=17
she bought 17 books since the original price of evereything was 51 dollars before the discount of 6 dollars.