 In this video, we provide the solution to question number 13 from the practice final exam for math 1060. We're asked to compute the work performed in moving an object given a specific force vector and a specific distance vector. The thing to remember about work is that work is equal to the dot product of force with displacement right here. And since both vectors are given an algebraic form, we can compute the dot product algebraically. This will be 45 times 70 minus 12 times 15, for which with a little bit of arithmetic, we can see that 45 times 70 is 3,150. And then 12 times 15 is equal to 180. And when you take the difference there, you get 2,970. So the correct choice will be option A.