B is correct because by default a rhombus has four equal sides, and it says it also has four right angles. A is incorrect because it could refer to any rectangle, C is incorrect because parallelograms don't necessarily have four right angles, and D is incorrect because quadrilaterals don't necessarily have four right angles either.
I think u set the two equations equal to eachother then solve for x
Answer:
a
Step-by-step explanation:
This question is invalid there would have to be non whole tickets purchased for it to make sense
To solve this problem you must apply the proccedure shown below:
1. The problem says that she had $240 to spends on gifts. When she bougth 8 identical statues she had $72 leftover. Therefore, let's call the cost of each statue
.
2. Now, you must substract $72 and $240 and divide this by 8 statues:
![x=\frac{240-72}{8}\\x=\frac{168}{8}\\x=21](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B240-72%7D%7B8%7D%5C%5Cx%3D%5Cfrac%7B168%7D%7B8%7D%5C%5Cx%3D21)
Therefore, the answer is: $21.