Answer:
The first one:
∆
[][][]
∆
Step-by-step explanation:
If you food it up, you could see that it comes up to the figure.
Plus, the others don't have triangles on both sides, and you need the shape on both sides for it to work.
What you need to do is I=PRT, which stands for interest=principle*rate*time. So it would be I=45*1.5*15. The answer is $10.13
v=-5/4 jajakskskaakakskskxkjdjdr
What exactly is your question?
a)
A = 5m × 7m = 35 m²
b)
A = 4cm×8cm/2 = 4cm×4cm = 16 cm²
c)
A = 1,2km×0,8km/2 = 0,96km²/2 = 0,48 km²
d)
A = (8m + 10m)·3m/2 = 18m·3m/2 = 9m·3m = 27 m²