27 x 3 equals 81. Do it simply - 20 x 3 is 60, - 7 x 3 is 21. - 60 +21 is 81
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(3x - 2y)(9x^2 + 6xy + 4y^2)
27 cu. ft in 1 yard, 4 into 12 3 times, 27x3=81. 81 sq. ft .
Yes, they are equal.
0.4 is equal to 0.400
0.15 is equal to 3/20