Question

find the area
https://www.connexus.com/content/media/93322-3162005-34727-PM-1828053078.gif

Answer 1

2s-3t=-4
s+3t=7

add

3s+0=3
so s=1
plug 1 in for s in either eq and

2(1)-3t=-4
2-3t=-4
-3t=-6
t=2

Answer 2

sorry, that was the answer to another eq. I will help if I can.

Answer 3

k

Answer 4

a=1/2 (b+b)*h

so a=1/2 (20+30) *12
A=1/2 50*12
a=1/2 600
a=300

ok?

Answer 5

thx