Answer:
81m+27t
Step-by-step explanation:
We need to distribute the 9 to the terms inside the parentheses:
9(9m+3t)=9(9m)+9(3t)=81m+27t
Hello,
(-9)⁴= (-9).(-9).(-9).(-9)= 81.81 = 6561
The price now is (80/100)x70 = (5600/100) = $56;
Above is postive. So the answer is +300