exam Maths Puzzle Numerical Ability

mark has $3.25 in nickles and dimes. he has eight more nickles than dimes. how many nickles and dimes does he have??

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exam Other Question

Karen biked at 13 mph for a time but got a flat tire. She then walked at 5 mph. She traveled a total of 93 miles. Had she biked the whole time, she would have gone 117 miles. How many hours did she walk? What are the statements and reasons for the following; given- angle 5 congruence to angle 6; prove- angle 4 congruence to angle 7???