Equation pi X r^2 first one = 158.37
second one 50.27
We know that
• Lashonda purchased a prepaid phone card for $20.
,
• Long-distance calls cost 8 cents a minute.
,
• The remaining credit on her card is $17.12.
This problem can be expressed as

Where <em>x</em> is the number of minutes.
We solve the equation for <em>x</em>

Then, we divide by -0.08 the equation

<h2>Therefore, Lashonda's call last 36 minutes.</h2>
Answer:
A number plus 5 is greater then or equal to 10.
If the three integers are
, then we have

We can combine the fractions on the left side:

