A.Determine the term(s) , constant term , variable(s) and coefficient (s) of the following.(draw a table)

1.) 6x — 4y
2.) 2ab + 3a — b + 8
3.) –m + n – 5
4.) r – 7
5.) s + 2r – 6

B.Evaluate the expressions for the given value of variable.

1. 8m – 21; m=4
2.7(2x–6); n=8
3.18–2y; y=3
4.10y–9; y=5
5.12a–4(a+3); a=5​