Answer:
i think t = 24
Step-by-step explanation:
68°+(5t-8)° = 180°
5t-8 = 180-68
5t-8 = 112
5t = 120
t = 120/5
t = 24
The 1st, 3rd and 4th
f(6) =6^2 - 2(6)
f(6) = 36 - 12
f(6) = 24
f(-3) = (-3)^2 - 2(-3)
f(-3) = 9+6
f(-3) = 15
f(-4) = (-4)^2 - 2(-4)
f(-4) = 16 + 8
f(-4) = 24
7×6
=42
hope this helps you