Answer:
1. -1
2.25
Step-by-step explanation:
N A
Answer:
I don’t understand the question?
12 boxes would be 22 pounds.
Answer:
The area of the triangle is of 21 units of area.
Step-by-step explanation:
The area of a triangle with three vertices
is given by the determinant of the following matrix:

In this question:
Vertices (3,0) (9,0) (7,6). So




The area of the triangle is of 21 units of area.