P(2, -1, 3), Q(8, 5, -6) and R(4, 1, 0) are the vertices of a
triangle. Show that PQ = 3PR.​

Ineed to know the answer to this algebra question.

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years

What is the unit rate of, 75% high fiber chimp food to 25% high protein chimp food.