Did Lydia make an all-or-nothing or a marginal decision while spending her money?

the answer is b just took the test

how is this a question? but yes, they were. if i recall correctly, it was very handy for native americans to use buffalo skin.

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i think i will need more detail to answer if this is a specific question on a test, but technology advancements are good for many industries, such as medicine or food industries, new technology could us in medicine in ways such as new scanners to tell us more about our bodies or new cures or vaccines for diseases.