What is indicated by arrowheads on a line

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

Quadrilateral efgh was dilated with the origin as the center of dilation to create quadrilateral e'f'g'h'. the quadrilateral was dilated using a scale factor of 2.5. the lengths of the sides of quadrilateral efgh are given. what is the length of side f'g'?

Add. express your answer in simplest form. 12 9/10+2 2/3 = i need u guys to me find the answer to this question