In the figure, d, e, and f are parallel lines. What is the value of x? Enter your answer in the box.

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

What is negative 3/9 times negative 2/8 ?

Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?