Answer:
The answer is 15.
Step-by-step explanation: To find the answer you have to think of a number line and think how many spaces do I have to jump to get to seven from negative eight.So you have to add eight just to get to 0. Now add 7 to get to 7. Together it equals 15.
The distance is 15
√(2−2)2+(7−−8)^2
√(2−2)2+(7+8)^2
√0+(15)^2
√225
√225≈15
