Find the missing side length… please help

What expression is equivalent to (2x-1)(x-3)?

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

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83