The perimeter of a rectangle is a rational number. The length of a rectangle is 6 units. The width of a rectangle must be a/an rational/irrational (circle one) number.

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Can someone me with this problem i don't understand i need

The school that imani goes to is selling tickets to the annual dance competition. on the first day of the ticket sales the school sold 7 adult tickets and 5 child tickets for a total of $96. the school took in $40 on the second day by seling 3 adult tickets . find the price of an adult ticket and the price of a child ticket. solve by using substitution elimination college prep algebra math heres the 2 equations i came up with 7x+5y=96 and 3x+2y= -40 show all workiv be stuck on this.