Answer:
B
Step-by-step explanation:
b - 3b + 15 - w + 4
-2b-w+19
1.750
3.516540
4.354.2
5.3560
6.4.73
7.1277.2
8.4544
9.813000
10.0.02532
11.3160000
12.0.00335
13.26310
14. 918.7
15. 9320
16.8.42
17.45160000
18.0.005435
19.2450
20.656.9
Hope this helps!
Part a: subtract 48-30=18
Part b: i found it by subtracting 48 -30 because it says left over