2.3 + w > 18
-2.3 -2.3
w > 15.7
16: B; irrational number, real
17: C; whole, integer, rational, real
18: B; real, rational, integer
Step-by-step explanation:

i think the answer is 56.55
Answer:If you are using a calculator, simply enter 770×100÷70, which will give you the answer.
Step-by-step explanation: