Answer:
i really wish i could help but i dont know ether i'm
sry maybe some one else could help
1.D
2.c
Step-by-step explanation:
f(m/4)=8(m²/16)-4(m/4)
=m²/2-m
f(-4)=-3(-4)²+5(-4)
=-3(16)-20
=-48-20
=-68
120-(30+48)= 42
24x = 8*60
24x = 480
x = 20