Well first, you have to know the distance formula. You plug the coordinates into it and you get the answer.

√1² + -7² = d
d = 7.1
Answer:
Step-by-step explanation:
A. you have to do the whole 30/2 i just had this on a test. GOOD LUCK
Answer:
A dictionary has the mass of about 1 killo so the book!
Step-by-step explanation: