What is the difference, in dollars, between the cost of the unlimited talk plan and the total cost for 1,420 minutes with plan c?

The difference is $10

Step-by-step explanation:

we know that

The cost of the Unlimited Talk Plan is $99.99 per month

The total cost for 1,420 minutes with plan C is equal to

$79.99+(1,420-1,400)*$0.50=$89.99

The difference is equal to

$99.99-$89.99=$10

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step-by-step explanation:

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.