I'm in the last year of high school, but my school's math program is really bad and I'm trying to catch up on my math. I've been staring at this problem trying to find an efficient method to solve it rather than brute forcing every alternative, but I can't find one. I'd love some help please!
Mum cut 8 roses from her garden. She had two vases - one tall and the other shallow. If she put at least one rose in each vase, how many different combinations of roses could she have in the two vases altogether?