13 is at least the difference of a number v and 1

According to the number line, what is the distance between points a and b? v ++ + + + + -16 -14 -12 -10 -8 + 6 + 4 + -2 + 0 + 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 o6 units o 7 units 12 units o 14 units

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?