Step-by-step explanation:
5. da^2
7×4^2
=7×16
=112
6.g(b+e)
=10(8+3)
=10×11
=110
7.a+b(f+g)
=4+8(9+10)
=4+8×19
=4+152
=156
8.a+b/3
=4+8/3
=12/3
=4
