exam
Maths Puzzle
Numerical Ability
Joseph has 4 times as many quarters as he does dimes. If he has a total of $2.65, how many of each type of coin does he have?
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exam Other Question
19. simplify
(mn^2)^-3
36. simplify
(2a^2y^-4z^-5)^3
73. multiply or divide and write scientific notation for the result.
(5.2 * 10^5)(6.5 * 10^-2)
solve the system by the graphing method
x+y=6
2x-y=-4