25 degrees
15-25=-10
-10+25=15
Answer: 
Step-by-step explanation:
Do you mean
? In that case just finish things inside the bracket first then multiply 2 inside.

Then multiply 2 inside the bracket.

Move 54 to other side then we get,




(Note: If this is not what you mean then please let me know.)
Answer:
fhuguyguy
Step-by-step explanation:
Formula is 2(wl+hl+hw)
2[(7x20)+(15x20)+(15x7)]
=1090 cm^2