How are the numbers 4,5,7, & 8 topologically equivalent?

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

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)

Is the point (0, 8) on the x-axis or y-axis? how do you know?