Final answer:
To solve the inequality 21 > -4t + 3, substitute t = -6 and simplify the expression.
Step-by-step explanation:
To solve the inequality 21 > -4t + 3, we substitute t = -6 into the inequality and simplify:
A) 21 > -4(-6) + 3; -24 + 3; 21 > -21 (True)
B) 21 > -4(-6) + 3; 24 + 3; 21 > 27 (False)
C) 21 > -4(-6) + 3; -24 - 3; 21 > -27 (True)
D) 21 > -4(-6) + 3; 24 - 3; 21 > 21 (False)
The correct answer is A) 21 > -4(-6) + 3; -24 + 3; 21 > -21 (True)