s(t(-5)) First find t(-5), since you know x = -5, substitute/plug in -5 for x in t(x) = 5x - 4
t(x) = 5x - 4
t(-5) = 5(-5) - 4
t(-5) = -25 - 4
t(-5) = -29
s(t(-5)) plug in -29 for t(-5)
s(-29) = -3(-29) - 2 (- times a - equals a positive)
s(-29) = 87 - 2
s(-29) = 85
Your answer is 85