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If x=3 and y=7, which of the following gives value of 23?
1.) y
2
/x2.) x
2
+2y3.) xy4.) y
2
-2x
2
Answered by Megan M. •
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Anton, Barbara and Clive are buying pens from the shop. Anton needs 4, Barbara needs 7, Clive needs 11. Pens only come in packs of 10. How many packs of pens do they need to buy between them?
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Add the fractions 2/5 + 3/7.
(2x+5)/3 = 11. Solve for x.
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