exam Maths Puzzle Numerical Ability

A farmer grows wheat, corn and barley. If 1/4 of the land is planted with wheat, 2/3 is planted with corn and 50 acres are planted with barley, how many acres have been planted?

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exam Other Question

Let A=[9,-12,3] B=[-6,6,-3] C=[3,-2,2]

Determine whether or not the three vectors listed above are linearly independent or linearly dependent.
If they are linearly dependent, d Can someone Help me see how to solve compound or absolute value inequality and show on graph and solution set. Thanks!

-8z is less than or equal to 24 and 7 + z < 9.