Answer:
77.25 cm^2
Step-by-step explanation:
Area of a regular octagon :
2a^2(1 + (sqrt2))
where a is the side
substitute 4 in for 'a'
Answer:
"M" would equal 6.6 repeated
Step-by-step explanation:
Answer:
4x+13
Step-by-step explanation:
combine like terms -2x and 6x to get 4 then combine 9 and 4 to get 13
1:4 is you answer. 4-3 is 1 and you do the same to 7