57+23 = 80
not rounded it's 80.14
Answer:
12
Step-by-step explanation:
If the numbers are the percentage then the answer would be 10
The polygon is concave because if you placed lines directly on top of every side of the polygon, one or more of the lines would intersect an existing side. In a convex polygon, if you placed lines on top of the sides they wouldn't intersect another side.
So your answer is B) Concave.
For this question you need to use the formula: y=p(1+r)^t. P is the principle, or the starting amount, $10,000, r is the rate of growth or decay, and t is the number of years. y=10,000(1.05)^x
