Language barriers misunderstanding of other people's actions inadequate funds to meet all of the needs of various groups new ways to look at problems and offer solutions in a multicultural society, which line above does not belong with the others?.

The number of brain synapses is believed to peak at

Compared with the cost of tuition, fees, and books for a traditional college course, the cost of a clep exam is:

Raul has one solution that is 20% acid by volume and one solution that is 50% acid by volume. he plans to mix together some of each solution to create 30 milliliters of a solution that is 40% acid by volume. how many milliliters of the 20% acid solution should raul use to create the 40% acid solution? can someone explain this to me? i know that the answer is 10 milliliters, but i don't know how to get it.