Adult visitors to an amusement park pay $40 for admission, while children are charged $25. Yesterday, a total of 625 people visited the park paying a total of $19,000 for admission. Drag and drop numbers in the boxes to create an equation which models this situation if x = the number of adult admission tickets sold and y = the number of child admission tickets sold yesterday.

Could somebody me with this radical simplification?

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.

Ftara spends $219 a month for her car payment and she makes $3,200 a month, what percent of her monthly income is spent on her car payment?