exam Maths Puzzle Numerical Ability

When Jim cleaned out the pool, he found 20 nickels and quarters. The collection of nickels and quarters totaled $2.60. How many quarters did Jim find?

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exam Other Question

must determine the volume of a 250mL beaker on two different ways.
Height= 9.03 cm
Diameter=6.73
Raduis= 3.37
use equation V=pieh to calulate the volume in cubic centimeter Will someone please help me solve this problem? simplify:x^2-14x+49/6x^2-37x-35