Evin spent 30% of his money in one shop and 50% of it in another shop. what percentage of his money had he left

a - base

b - exponent

so,

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.

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72