Well 7 out of 12 months have 31 days and if you need to know what the names are they are ........January,March,May,July,August,October, and December hope this helps!
$4.00/10=x/1
for example if you want to buy apples that cost 4.00 dollars for 10 pounds you might want to know how much it costs for 1 pound.
"2 times pi times r", which can be written as "2*pi*r", represents the circumference of a circle. This is the distance around the circle (aka perimeter)
r is the radius of the circle
if you know the diameter then you can divide the diameter in half to get the radius (example: diameter is 10 so the radius is 5)
The answer would be 19.87
7.2*12*.23= 19.872
Because two is lower then 5 we could round to 19.87
