Please help and thanks in advance

Add 0.65 and 0.24. How many tenths are in the sum?

What is 0.000008 meters in scientific notation

Plz hurry finals a paper cup in the shape of an inverted cone is 8 inches tall and has a radius of 1.5 inches. how much water can the cup hold? use 3.14 for pi. round the answer to the nearest tenth. a) 12.6 cubic in. b) 18.8 cubic in. c) 37.7 cubic in. d) 56.5 cubic in.

Find y to the nearest hundreds place