( C ( ( ( ( ( 20. Amy bought 4 bunches of green grapes and 5 bunches of red grapes. . There are 20 grapes on each bunch. How man
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Let's say the numbers are "a" and "b"
thus
set the derivative to 0, and check the critical points, there's only one anyway
and do a first-derivative test, to see if it's a maximum
thus
set the derivative to 0, and check the critical points, there's only one anyway
and do a first-derivative test, to see if it's a maximum
