For the Following Problem, Solve the Inequality $15 \leq 10 t - 5 t - 20$

Multiple Choice

For the following problem, solve the inequality. $15 \leq 10 t - 5 t - 20$

A) $( 7 , \infty )$
B) $[ 8 , \infty )$
C) $[ 7 , \infty )$
D) $[ - 7 , \infty )$
E) none of these