-4x/5≥1/10
-8x≥1
x≤-1/8
x∈(-∞;-1/8]
Step-by-step explanation:



Answer:
Step-by-step explanation:
Surface area is the area times all the faces
5^4 equals 625 your welcome
1 and 1/2x+3/4x=5/8
combine x's
1 and 1/2x=4/4x+2/4x=6/4x
6/4x+3/4x=5/8=9/4x
9/4x=5/8
multiply both sides by 8
18x=5
x=5/18
x=5/18 or aprox 0.277777777777