evaluate the following algebraic expressions. Box your final answer.

u=1
w=3
y=-1
v=-4
x=-2
z=0

1.12u=
2.5w - 7x=
3.9u/3v=
4.10(u+w)2=
5.(3w/3u)3=

yung matinong sagot po pls,with solution po,thanks​​