Speed of Grace in morning :

Speed in evening :

Average speed :

Hence, this is the required solution.
The ratio will change because you will be buying some from what the ratio shows.
There are 14 cheese croissants and 21 plain ones, if you buy one of the cheese ones there will be 13 cheese croissants left which changes the ratio.
The answer is
K= 2.57
T= -5.74
(5 1/4 in)(12 1/2 in)(4 in)
(21/4)(25/2)4=262.5 in^3
Angle 1 is a "corresponding angle" with respect to the one marked 155°, so it has the same measure. The measure of angle 1 is ...
... 155°