Write a function rule that represents the sentence.
7 less than three fifths of b is a.

1. 7-3/5b=a
2. 3/5a-7=b
3. 7-b=3/5a
4. 3/5b-7=a

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.