Answer:B
Step-by-step explanation:
3 tens= 30
10 ones= 10
30+10=40
Answer:
15/8
Step-by-step explanation:
tan is opposite/adjacent
area = 1/2 *b*h
1/2 * 15 * 8 = 60 square units
Answer:
26.55
Step-by-step explanation:

use the b^2 equation
------------------------
b^2 = 31 squared - 16 squared.
b^2 = 705
b=
b=26.5518361