# Posts by nehal

Total # Posts: 6

**maths**

30 and 42

**analytical math**

rony who is sixteen years old, is four times as old as her brother. How old will Mary be when he is twice as old as her brother?

**chemistry**

What mass of crystals will form when a hot saturated copper sulphate solution made by dissolving 60 g of copper sulphate crystals in 100 cm3 of water at 60 degree Celsius is cooled to 25 degree Celsius?

**Math**

The tangents to a parabola with focus (1,2) are x+y=0 and x-y=o. Find the length of latus rectum.

**5th Grade Math**

8/$744.48=93.06

**calculus**

reiny is correct

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