Answer:
180
Step-by-step explanation:
Here,
b=15
c=9
Now,
[tex]=b^{2}-5c\\\\=15^{2} -5*9\\\\=225-45\\\\=180[/tex]
b^2-5c
Substitute 15 in for b
15^2=225 -> 225-5c
Substitute 9 in for c
5(9)=45
225-45 = 180
