+73 Simplify each expression.
1. 8 + (9t + 4)
2. 9(2x)
3. (4 + 105x) + 5
4. (10p)11
5. (12 * r) * 13
6. (2 + 3x) + 9
7. 4 * (x * 6.3)
8. 1.1 + (7d + 0.1)
9. 56ab/b
10. 1.5mn/m
11. 13p/pq
12. 33xy/3x
+249 1. 8 + (9t + 4) --> combine like terms
12+9t
2. 9(2x) --> multiply
18x
3. (4 + 105x) + 5 --> combine like terms
105x+9
4. 10p(11) --> multiply
110p
5. (12r)13 --> multiply
156r
6. (2+3x)+9 --> combine like terms
11+3x
7. 4(x6.3) --> multiply
25.2x
8. 1.1 + (7d + 0.1) --> combine like terms
7d+1.2
9. 56ab/b --> combine like terms
56a
10. 1.5mn/m --> combine like terms
1.5n
11. 13p/pq --> combine like terms
13/q
12. 33xy/3x --> combine like terms
11y
