# Posts by Haider

Total # Posts: 4

**Science**

A pebble is dropped into a graduated cylinder with 20ml of water in it. After the pebble is dropped in, it sinks and the water level rises to 25ml. What is the volume of the pebble? (Numbers and Units!) I did 25ml - 20ml but the answer had to be something about density.

**math**

john and bryan share 1500 Rs.if john gets twice as much as bryan how much money does bryan have

**calculus**

Find the continuity of the region bounded by the two curves. y=x^2 and y=3x?

**Chemistry**

I wont to get concentartion by using A weight of chemical material and chemical formula.

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