exam Maths Puzzle Numerical Ability

identify the graph x+3y>1

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exam Other Question

Disapprove the statement that every positive integer is the sum of at most two squares and a cube of nonnegative integers. an investor is planning to invest $25,000 for one year. she plans to invest a portion of this money at 7% and the remaining at 12%. what is the maximum amount of money that can be invested at 7% in order to make at least $2,450 for the year?