- When I was 6 my sister was half my age, now I am 70 how old is she now?

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What is the temperature (°C) of 1.75 g of O2 gas occupying 3.30 L at 1.00 atm? Answer would be in Celsius.? How do I prepare a 0.6N HCL ? Draw a graph of the signed area represented by the integral and compute it using geometry.? Person uses a rope to pull a 30kg penguin on a 10kg sled across a horizontal field of snow... see picture for details. Help on all parts!? Calculate the R3 approximation for f(x) = 8 − x on [3, 5].?