Answer:
1.50x=18
x=12
Step-by-step explanation:
You have to divide 1.50 on both sides and 1.50x/1.50= x and 18/1.50=12 so x=12
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Answer:
28 cm^2
Step-by-step explanation:
a^+21^2=36^2
a^2+441=1225
a=28