Can someone answer this?

Click on the graphic until you find the right quotient. (36xa - 30xb) ÷ (-6x2)

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β