Answer:
+7 or 7
Step-by-step explanation:
an integer is a whole number. So the question asks what whole number represent this real world situation. A positive charge to an atom can not be represent by a negative number (number below zero). Therefore, it has to be positive.
It is. 7.17285714285714 you can stop at the thousands
Answer:
61
Step-by-step explanation:
79 + 40 = 119
180 - 119 = 61