After the first day, 1/3 of the original amount remained:
... (1/3)·45 = 15
After the second day, 2/3 of that amount remained:
... (2/3)·15 = 10
The bookstore has 10 copies left.
Try using 1070 degrees as the sum of the interior angles of a convex polygon, we get:
1070 =[n - 2] x 180 (n = number of sides)
1070 =180n - 360
180n =1070+360
180n =1430
n = 1430 / 180
n = 7.94 number of sides.
Round the number up to 8 since 7.94 isn’t whole.
So, the convex polygon is an octagon with sum of its interior angles:
[8 - 2] x 180 =1080 degrees.
It’s 40 miles in one hour and the fraction is 40/1. BRANLIEST plzzz!
