Answer:
Thus, n = 4 is the solution.
Step-by-step explanation:
1. perform the indicated multiplication, obtaining 3n + 24 = 36
2. Subtract 24 from both sides: 3n = 12
3. Solve this result for n: n = 12/3. Thus, n = 4 is the solution.
6.) triangles; 6 units
7.) 5 x 6; 30 units
8.) 72 units
9.) 84 units
Hope this helps!
-2 times -1 = positive 2
(two negatives cancel out to form a positive)
920
18 rounded is 20 as the second number is the ten
