c) 1 week x 7 days/1 week x 24hr/1 day x 60min/1hr x 60s/1min =
If you solved it, you would get 604,800, which is correct.
(x + a) (x + b) = x² + (a + b) x + ab
75 * 77=
=(70+5)(70+7)
=70²+(5+7)*70+5*7
=4900+12*70+35
=4900+840+35
=5775
Step-by-step explanation:
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