A caterer is making cookie trays for upcoming holiday parties. This morning, she made 1 small tray and 3 large trays, which contain a total of 168 cookies. In the afternoon, she made 4 small trays and 3 large trays, which contain a total of 213 cookies. How many cookies do the different sized trays contain?

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?

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults.how many students and adults went if the ticket charge was $42.75

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0