Solve the Problem $46.9 \%$ B) $51.2 \%$ C) $42.7 \%$ D) $29.9 \%$

Multiple Choice

Solve the problem.
-In Smithville, there were 225 teachers in 1990 and 321 teachers in 2000. Find the percent of increase in the number of teachers in Smithville during this time period. Round to the nearest tenth of a percent.

A) $46.9 \%$
B) $51.2 \%$
C) $42.7 \%$
D) $29.9 \%$