The circumference formula for a circle is c =3..14*d where c is circumference and d is diameter . If a pizza has 16 inch diameter, what is the circumference formed by the outer edge of the crust

What is the value of the expression below? (81^2)^1/8

Why did the ice arena get so hot after the big game (this is math related google it to find the paper

Miguel’s teacher asks him to color 4/8 of his grid. he must use 3 colors: red, blue, and green. there must be more green sections than red sections. how can miguel color all the sections of his grid to follow all the rules