Patti's dad is planning to build a pen for their new beagle. The rectangular pen will measure 12 feet by 15 feet and he will place posts three feet apart around the perimeter. How many posts will he need?

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After the seventh month of a 12-month loan: the numerator is: {(n + 11) + (n + 10) + (n + 9) + (n + 8) + (n + 7) + (n + 6) + (n + 5)} = , and the denominator is: {(n) + (n + 1) + + (n + 11)} = . therefore, the fraction is numerator/denominator (to the nearest tenth) = %

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles