Answer:
31.25 k
Step-by-step explanation:
80 % * x = 25 k
.80 x = 25 k
x = 25 k / .80 = 31.25 k
EIther 45 or 15
17.3
50 - 32.7 = 17.3
x ≤ 3
2(4+2x)≥5x+5
8+4x≥5x+5
4x-5x≥5-8
-x≥-3