Answer:
638.54-159.50+×> 500
Choose 3
Step-by-step explanation:
638.54-159.50=488.04
So the number added must make the value greater or equal to 500
It would be a direct variation.
<h2>
Explanation:</h2><h2>
</h2>
Here you haven't provided any function, so I'll assume this one:

This is a quadratic function whose graph represents a parabola. Any parabola has its vertex at the point:

Therefore:

Therefore, the vertex is:

Answer:
22.05
Step-by-step explanation:
1 mile=5280 feet
4 miles=21120 feet
21120×20÷100=4224. As a result, 20% of 4 miles is 4224 feet. Hope it help!