Answer:
30 square inch
Step-by-step explanation:

5x=25 could be one.
25/x-3=2 is another.
And the last one could be x/85+7=24
<span>First find how many grams are in 15.87kg and how many meters are in 30.48cm
15.87kg x 1000g/kg = 15, 870g
30.49cm x 1m/100cm = 0.3049m
Then, set up a proportion.
0.3049m/15, 870g = 1m/x g
Cross multiply to get..
0.3049x = 15, 870
Divide for x and there you are.</span>Source(s):Myself.1004 <span>· 8 years ago
</span>
Answer:
307.6
Step-by-step explanation:
190+224.50= 384.5 - 20% = 307.6