A set of cards are organized into four rows. The first row has 6 cards, the second row has 10 cards, the third row has 9 cards and the fourth row has 5 cards. A person is told to randomly choose one card. What is the probability the person will choose a card from the second row?

Which graph represents 2x-5y< 15

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?