What does no gains or no losses on first down meaning

Drag each sequence of transformations to the correct location on the table. classify the sequences of transformations based on whether or not they prove the congruency of the shapes by mapping shape i onto shape ii. plz i'll rate u 5 stars need this done for a mastery test

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Which of the following is the shape of a cross section of the figure shown below