exam Maths Puzzle Numerical Ability

I have eight more quarters than dimes. If the coins are worth $6.20, how many dimes are there?

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exam Other Question

write an equation parallel to the given line. Write an equation perpendicular to the given line.

y= -x+5 How do I figure this one out? 17. Build each rational expression into an equivalent rational expression with the indicated denominator.
-9z = ____?____
_____ ________
2aw 8aw