It be 81.
You have to take half of -18 which is -9, and square that, which is 81.
Answer:
20
Step-by-step explanation:
7 x 4 = 28
so you do 5 x 4 and get 20
The product of this is 81
Answer: i believe you're trying to find N, if so N=3
Step-by-step explanation:
you would start by adding +2 to each side of the equation, leaving you with 3n=9
you would then divide each side by 3, which gives you N=3
