I want to make sure that my answer is correct4 - d 4 - g4 - b

Solution:
4(d)
The given expression is 7h+8g+2h+g.
Solve as follows:
[tex]7h+8g+2h+g=7h+2h+8g+g[/tex][tex]=(7+2)h+(8+1)g[/tex][tex]=9h+9g[/tex]Therefore, the given expression is written as 9h+9g.
4(g)
The given expression is 10q-5q+17-9.
Solve as follows:
[tex]10q-5q+17-9=(10-5)q+8[/tex][tex]=5q+8[/tex]Therefore, the expression is written as 5q+8.
4(b)
The given expression is 3c+5c+2d+d.
Solve as follows:
[tex]3c+5c+2d+d=(3+5)c+(2+1)d[/tex][tex]=8c+3d[/tex]Therefore, the given expression is written as 8c+3d.