Answer:
1 slice will be left because there are 16 slices and 15 guests
Step-by-step explanation:
Answer:
11.56 m²
Step-by-step explanation:
3.4×3.4=11.56m²
I used the Old Change New method and I crossed multiplied.
The answer is about $498 (I rounded $497.895875)
Check: $498>459.95 by 8.25%
Answer:

Step-by-step explanation:
The formula for the area of a triangle is 
The triangles that can be made is the triangle that has legs 20 and 50 and the triangle that has legs 20 and 10.
Since there are 2 of each triangles, we get:

The answer that fits is the first option.