Answer:
13. 3x+10=5x-10
14. (I'm not sure how to set this one up, sowwy ;^;)
15. 5x+15=6x
16. x+10=4x-20
I'm pretty sure this is how to set it up
IDK
Step-by-step explanation:
20%
A=2(wl+hl+hw)
A=2(6ft×7ft+6ft×7ft+6ft×6ft)
A=2(42ft²+42ft²+36ft²)
A=2(120ft²)
A=240ft²
