Answer:
60 pounds
Step-by-step explanation:
Let the normal price be p. The "25%-off" sale price is then 0.75p, and this 0.75p equals 45 pounds. Dividing both sides by 0.75 results in p = 60 pounds.
Answer:
2/7
Step-by-step explanation:

3 x 15 = 45
3 x 14 = 42
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There are 14 packages.
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x = 42/3
-----> 3x=42
Answer:
-5x+ -35y
Step-by-step explanation:
-5x+ -35y