Kelly has two dogs, Pixie and Fifi. Pixie weighs 8.5 kilograms
Fifi is 720 grams lighter than Pixie.
Work out how much Fifi weighs.

7.78 kilograms

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

ion

step-by-step explanation:

ion ion ion ion ion ion ion ion ion ion ion