Solve the Problem $\frac { 5 } { 9 }$ When the Temperature Is Below

Multiple Choice

Solve the problem.
-To convert a Fahrenheit temperature to a Celsius temperature, we subtract 32 from the Fahrenheit temperature and then multiply the result by $\frac { 5 } { 9 }$ . When the temperature is below $29 ^ { \circ } \mathrm { F }$ the first grade students are not allowed to play outside. What is this temperature in degrees Celsius?

A) $15.9 ^ { \circ } \mathrm { C }$
B) $84.2 ^ { \circ } \mathrm { C }$
C) $20.2 ^ { \circ } \mathrm { C }$
D) $- 1.7 ^ { \circ } \mathrm { C }$