How many of the numbers from 10 through
have the sum of their digits equal to a perfect square?

The triangles are similar. what is the value of x? show your work.

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

Write the equation in general quadratic form: plz !