Solve
-A Wall in Alex and Carla Dinu's Garden Is $3 \frac { 1 } { 4 }$

Multiple Choice

Solve.
-A wall in Alex and Carla Dinu's garden is to be built using brick that isrick that is $3 \frac { 1 } { 4 }$ inches wide and a mortar joint that is $\frac { 5 } { 8 }$ inch wide. Use inch wide. Use the diagram to find the height of the wall.

A) $19 \frac { 3 } { 8 } \mathrm { in } .$
B) $18 \frac { 3 } { 8 } \mathrm { in }$
C) $18 \frac { 3 } { 4 } \mathrm { in }$
D) $19 \frac { 3 } { 4 } \mathrm { in }$