book Maths Puzzle Numerical Ability

I need your help on Proportions and Rational Expressions.
Please show your steps, and explain well.
/ will define a fraction, "divided by" is a division symbol... I hope I wrote

Read Solution (Total 0)

book Other Question

Mr. Turner invested a sum of money at 7% and twice that sum at 3%. His yearly return was $390. How much did Mr. Turner invest at each rate?
(This problem is not from a textbook). Please help, Thank You A polygon with all sides the same length and all angles the same measure is called a ___________ polygon.