Let v=-3i

v

=

-

3

i

and w=2-4i

w

=

2

-

4

i

. Find v-w

v

-

w

.

Mrs. Johnson spent $611 buying lunch for 78 students. If all the lunches cost the same, about how much did she spend on each lunch?

What is the simplified form of 3a^4b^-2c^3

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The simple interest on $600.00 at 5% per year for two years is?

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