Answer:
$165.62
Step-by-step explanation:
284.28-40-48.39-30.27=165.62
If 2 Lines are crossing together to make 2 pairs of Vertical Angles, the sum of all 4 Angles will always be equal to 360°.
She has 4 groups all together. 3 groups with ten rocks each and 1 group with 8 rocks(8/10).
