We have the following:
1.
let x a tulips
let y daffodils
therefore:

solving:

for x:

Therefore, the answer is 5 tulips and 10 daffodils
2.
let x a 30% silver
let y a 55% silver

solving:

for x:

Therefore, the answer is 480 pounds of 30% silver and 320 pounds of 55% silver
-6,-7, and -8, this is more of a guess and check question
4.98 for the water and for the food it’s 52.9 dollars for 10 pounds.
Answer:
5
Step-by-step explanation: