a. A 9 or 10
There are 8 chances of getting 9 or 10, so the probability is:
[tex]\frac{8}{52}[/tex]b. A black card or a 2
There are 26 black cards and 2 more 2s that are red, so the probability is:
[tex]\frac{28}{52}[/tex]c. A 7 or a red 4
There are 4 sevens and 2 red 4s, so the probability is:
[tex]\frac{6}{52}[/tex]d. A heart or a black card
There are 26 black cards and 13 hearts, so the probability is:
[tex]\frac{39}{52}[/tex]e. A face card or a heart
There are 13 hearts and another 9 non-hearth face cards, so the probability is:
[tex]\frac{22}{52}[/tex]
