Answer:
y = 17.5
Explanation:
y = kx
→ Substitute in the values
5 = 2k
→ Divide both sides by 2 to isolate k
k = 2.5
⇒ y = 2.5x
→ Substitute in x = 7
y = 2.5x ⇔ y = 2.5 × 7 ⇔ y = 17.5
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