having trouble please help me !!

Answer:
213
Step-by-step explanation:
Use the triangle area formula : [tex]\frac{1}{2}[/tex]×bh
b = length h = height
b = 14.8 + 5.2 h = 21.3
1) [tex]\frac{1}{2}[/tex] × (14.8 + 5.2) (21.3)
Add the numbers in the parenthesis.
2) [tex]\frac{1}{2}[/tex] × (20) (21.3)
Multiply the parenthesis.
3) [tex]\frac{1}{2}[/tex] × 426
Reduce the numbers with the greatest common factor: 2
4) 213