ahow work please
#10 Find the 8th term of the arithmetic sequence y, 3x + y,...
#10 Find the 8th term of the arithmetic sequence y, 3x + y, 6x + y,... #11 As part of her fitness program, Karen has taken up jogging. If she jogs 2 miles the 1st day and increases her daily run by y mile every week, when will she reach her goal of 4 miles / day? #12 A machine purchased at a cost of $80,000 is to be depreciated by the double declining - balance method over 10 years. What is the book value of the machine at the end of 4 years? By what amount has the machine been depreciated by the end of the fourth year? FORMULAS an = a + (n - 1)d na... n(a + a) 1-1 Vin) (-2/N" Din) - C - Vin)