The speed of light is approximately 8x109 times faster than the speed of sound in air.
if the speed of sound in air is 372 metres per second, calculate the speed of light.
give your answer in scientific notation correct to 3 significant figures.

What are different types of statistical programs

Which expression is equivalent to (4 +6i)^2? ? -20 + 48i 8 + 12i 16 - 36i 20 + 48i

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of