Answer: 18
Step-by-step explanation: You would substitute x for 3 in the expression. This would equal 21-3, or 18 when simplified
The answer should be 19 if you mean 3 to the power of 2. as listed below.
the percent is 130% for the question
Answer:
40%.
Step-by-step explanation:
Write it as a fraction then multiply by 100:
(36/90) * 100
= 3600/90
= 40%.