Answer: 6x^2y
Step-by-step explanation:
15 = rate * 40
rate = 15/40
rate = 0.375 * 100% = 37.5%
It will take months for the boy to grow to a height of 132cm. 132-90= 42 cm left to grow. 42÷3.5= 12months, or a year.
http://goblues.org/faculty/grantm/files/2015/12/Practice-Test-3.7-Solutions.pdf
I think it's question number three. Sorry if the link dosen't work.
The original number would be 900
