Answer:
1.5 above sea level = +1.5
absolute value of −4.5 = +4.5
−2 = -2
opposite of 4 = -4
absolute value of 1 = +1
2.5 below sea level = -2.5
greatest common factor of 8 and 12 = +4
−(−3) = +3
−3.5 = -3.5
Opposite of −5 = +5
Step-by-step explanation:
