Find the value of Arc cos 0.
a. 0
b. pi
C.2
d. pi\2
Please select the best answer from the choices provided

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.