For an overdue book, the school library charges a 25¢ penalty, plus 5¢ for every day the book is overdue. The town library charges a 5¢ penalty, plus 10¢ for every day the book is overdue. For what number of days is the total fee at both libraries the same ? answer choices:
c=4
c=6
c=1
c=3

What is the slope of any line parallel to the line 8x+9y=3 in the standard (x, y) coordinate plane?

Drag statements and reasons to each row to show why the slope of the line between d and e is the same as the slope between e and f, given that triangles a and b are similar.

Brittany has designed four different birdcages, each with the same volume: a square pyramid, a cylinder, a cone, and a sphere. the zoo wants to use one of brittany’s designs but plans to change the volume of the cage. find the design change that would result in the birdcage with the greatest volume. a.) increase the area of the base of the square pyramid by a factor of ten. b.) increase the height of the cylinder by a factor of ten. c.) increase the radius of the cone by a factor of ten. d.) increase the radius of a sphere by a factor of ten.