Answer:
ABC- Isoceles DEF- Scalene GHI- Equilateral
Step-by-step explanation:
I think for the first part you just pick shapes from your room that have the same equal/unequal sides as the triangle
Bothell are proportional
−189=4x−3(−4x+15)
−189=16x−45
16x−45=−189
16x−45+45=−189+45
16x=−144
16x /16
= −144 /16
x=−9
Good luck honey !!
5
You just divide it normally