Which expression can be used to determine 50% of 42?

42 - 2
42 / 2
42 / 10
42 - 10

Find the vertex of the function given below y=x^2-6x+1

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =

If a company produces x units of an item at a cost of $35 apiece the function c=35x is a of the total production costs