A = hb/2
A = (15)(11) / 2
A = 165/2
A = 82.5 <===
Answer:
b
Step-by-step explanation:
Answer:
80cm^2
Step-by-step explanation:
20*5=100
10*2=20
100-20=80
Each row has two more boxes than the row above. The first row has one box
The boxes in a row form an arithmetic sequence with the first term, a₁ = 1 and the common difference, d=2.
The n-th term is

The sum of n terms is

Answer:
The table will have the following:
Row Number: 1 2 3 4 5 6
Boxes in the row: 1 3 5 7 9 11
Total boxes in the display: 1 4 9 16 25 36