Book
Maths Puzzle
Percentage
Mark paid $26 for a CD player that was listed for $40. What rate of discount did he recieve?
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Book Other Question
Alex is 5 yrs older than his brother Max. In 7 yrs, the ratio of Alex's age to Max's age will be 4 to 3. What are their present ages?
I NEED HELP WITH THIS PROBLEM!!!
2y^2-6y-8=0 PLEASE HELP ME SOON!!!