Answer:
-7
Step-by-step explanation:
.
+7 or 7
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.
-4/5
2/5 ÷ -1/2
Copy dot flip
2/5 * -2/1
1.2*a=180
a=180/1.2
a=150 cm
38
Step-by-step explanation
2/7× 133=38
