49x3= 147 so 10 reduction will make tim spend 137. 49x5= 245 so 20 reduction will make Craig spend 225. 225-147= 78 so Craig spends 78£ more than tim. All the offers state “X or Y” meaning it’s one or the other hence the ‘or’. Atleast that’s my interpretation of it.
You mean like the tricuspid and mitral (bicuspid) valves?
Answer: the first one is 4/3. The second one is 8/20. The third one is 8/8. The fourth one is 7/13!
Step-by-step explanation: