One card is selected at random from a deck of cards. Determine the probability of selecting a card that is less than 6 or a diamond. Note that the ace is considered a low card.

What is sin 7x/4 ? i need on this urgent trig

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15