Answer:
Area = 40 cm²
Step-by-step explanation:
Area of triangle is derived by the formula,
Area = 
Length of Base = 8 cm
Height of the triangle = 10 cm
Therefore, area of the given triangle = 
= 40 cm²
I think the last one is the right one
Answer:
C
Step-by-step explanation:

Answer:
14
Step-by-step explanation:
2+2+82-72
86 - 72 = 14
2(-X+4)=3. x= 5/2. PLUG IN X!
2(-5/2+4)=3. Distribute the 2
2× (-5/2) = -5
2×4=8
-5+8= 3