PLEASE HELP WILL MAKE BRAINLIEST AND GIVE EXTRA POINTS TO​

What is the difference between the points (4, 7) and (4, -5)? a. 0 units b. 2 units c. 4 units d. 12 units

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

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.