Guys, pls help I can't answer it :(

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Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

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.

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²