Answer:
y = -75
Step-by-step explanation:
Simplify both sides of equation
1/5y = -15
multiply both side by 5
1/5y * 5 = -15 * 5
f(-1)=6×(-1)^-4=6/(-1)^4=6/1=6
8 x 6 x 4 = 192
Volume is l x w x h