When a family with 2 adults and 3 children bought tickets for an amusement park, they paid a total of $56.50. the next family, with 4 children and one adult, paid $49.50. what was the price of an adult ticket and a child ticket using system of equations.

Factor this polynomial completely x^2-64

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18