exam Maths Puzzle Numerical Ability

a vending machine takes only dimes and quarters. so far the machine has only taken a total of 30 coins. the amount of money it has collected is $4.20.

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exam Other Question
we are learning math, and this is one of my problems on my homework, i dont understand this problem can u break it down for me:5-2x over x + y Find the surface area and volume of a rectangular prism with the given dimensions. Round to the nearest tenth.

1.) e=6.5cm,w=15.1cm,h=4.5cm





thanks so much