Given BC is perpendicular to AD-BD proves AC= DC​

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Define multiplicative inverse. give an example of a number and its multiplicative inverse.

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50