Answer:
3.5 and 3½
Step-by-step explanation:
Half of 7 is positive 3.5 aka 3½. It can't be -7/2 or -3.5 because they result in a negative number. It also can't be 7.2 because that's too big of a number.
Answer: I believe your answer is C.
Exact form:
1220014151548416
Decimal form:
1.22001415*10^15
The answer is 60 because a triangle = 180