Answer with explanation:
→π is an Irrational Number.
→Decimal Representation of π is non terminating non repeating.

⇒5 π =15.70
He can make 15 chess boards.
All you need to do is multiply 3 by 5.
Answer:
0
Step-by-step explanation:
Combine like terms, perform the operations with the coefficients of the variable, then write the variable.
10r - 5r + 3r - 8r
= 5r + 3r - 8r
= 8r - 8r
= 0
Answer:
10.6
Step-by-step explanation:
All you have to do is just add up all the sides to find the perimeter