Does anyone know how to do the symbol where the / is horizontal in fractions

Which sentence describes why polygon mnop is congruent to polygon jklp? a. polygon jklp maps to polygon mnop through a translation. b. polygon jklp maps to polygon mnop through a rotation. c. polygon jklp maps to polygon mnop through a dilation. d. polygon jklp maps to polygon mnop through a stretch.

Which equation represents the partial sum of the geometric series?

The square root of 9x plus 7 plus the square rot of 2x equall to 7