Evaluate the function. f(x)=-4x^2+10 find f(-2)

Itook a better photo of the question so y’all can see it i hope it’s a fine photo

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b?