Step-by-step explanation:
diameterfor first minute :
Circumference = 25.12
2πr = 25.12
22/7 × r = 25.12/2
r = 12.56 × 7 /22
r = 87.92/22
r = 3.99 mm ( approx. )
diameter = 2r = 2 × 3.99 = 7.98 mm
diameter for second minute =
circumference = 75.63
2πr = 75.63
πr = 75.63/2
r = 37.815 × 7/22
r = 264.705/22
r = 12.032 mm
diameter = 2r = 24.064 mm
<em><u>COMPARISON</u></em><em><u> </u></em>: 24.064/7.98
<u>3 times greater ( approximately )</u>
It would take her 2 hours
The slope-intercept form:

m - slope
b - y-intercept
We have the slope m = 4. Substitute:

Put the coordinates of the point (2, -3) to the equation of a line:

<em>subtract 8 from both sides</em>

<h3>Answer: y = 4x - 11</h3>
6/21 I think cause you can't go down any more