Which expression is equivalent to 15x^-3z^5/3x^7z^-5 please answer spr fast

What is the arc length when θ =pi over 3 and the radius is 5 cm? (5 points) 5 pi over 3 cm 10 pi over 3 cm 16 pi over 3 cm pi over 3 cm

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be able to prepare using the sauce?