Answer:
Here is my workk
Step-by-step explanation:
WORKKKKK
313 ft
If 12in = 12 ft
313in = x
= 313 ft
1.we know the perimeter of the triangle=x-3+x+6+x=3x+3
so,answer is (b)3x+3
2.area of the triangle=1/2*b*h
=1/2*x+2*2x+6=x+2*2x+6/2=2x^2+6x+4x+12/2=2x^2+10x+12/2=2(x^2+5x+6)/2=x^2+5x+6
so,answer is(b)x^2+5x+6
30%
$500-$350=150
150/500 x 100
=30%
