Question

Valek finds the distance between P and R. His work is shown below.

Answer 1

$(20)(48) =$

Answer 2

We have been given work of Valek to find the error if any.

There is no question or word problem which is used to make equation so step 1 is correct without any question.

Then he did cross product and got 20PR=(32)(48) while correct cross product will be 32PR = (20) 48).

Hence the last choice "Valek should have written the cross-product in step 2 as 32PR = (20) 48)." will be the final answer.