Please answer this correctly without making mistakes I want ace expert and genius people to answer this correctly without making mistakes

Hi there!
[tex]\large\boxed{=7.5}}[/tex]
10 - 5c =
Solve by substituting in 0.5 for c:
10 - 5(0.5) =
Evaluate 5 · 0.5:
10 - 2.5 =
Solve:
10 - 2.5 = 7.5