<span>
40000000 because you just add a 0</span>
(-2,-4)
Cramer's rule
10x - 4y = -4
-3x + 7y = -22
Main determinant : 58
Determinant of <em>x</em> : -116
Determinant of <em>y</em> : -232
So, (-2,-4)
Hope this helps and please consider marking branliest.
Part 1 : A=1/2 ap P= 2A/a = 1000/10 = 100 ft.
Part 2 : (100 ft.)($7.95/ft) = $795
I'm not sure for part 3.
She has to be 7 3/4 inches taller to be the same height as the boy.
