Answer:
8
Step-by-step explanation:
Considering the given value of sum of interior angles with exclusion of one to be 1070 then we can write it as
1070=180(n-2) where n is the number of sides required here.
Making n the subject of the formula then following step by step


Therefore, the shape is octagon and it has 8 sides.
1. 79% Take 100 x 21%=21, then subtract 21 from 100 = 79
2. $138 Take 1200 x 11.5%= $138
337.5 divide 450 by 4 and multiply the product by 3
Answer:
Bob is 1 1/2 Years Old
Step-by-step explanation:
5-3.5=1.5
Hence, Bob is 1.5, or 1 1/2 years old