(x^(2)-3x-54)/(x^(2)-18x+81)*(x^(2) +12x+36)/(x+16) simplify completely ? !

Eileen purchased 3.4 pounds of apples at the total cost of $19.72. if she purchases 6.2 pounds of apples at this store, how much would it cost?

If m 17 27 90 63 ** picture is attached

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?