Does anybody know how to find an inverse operation in integer division

Asquare parking lot has 6,400 square meters what is the length in meters

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

Yahir designs bracelets. he uses between 9 and 15 red and yellow beads in the ratio of 2 red bead to 5 yellow beads. drag the beads into the container to meet these requirements