Answer:
The answer would be -439
Step-by-step explanation:
To find this, start by finding t(-7)
t(x) = 3x
t(-7) = 3(-7)
t(-7) = -21
Now that we have this answer, we input it into the s(x) equation.
s(x) = 2 - x^2
s(-21) = 2 - (-21)^2
s(-21) = 2 - 441
s(-21) = -439
