Question 1: If f(x) = x + 1, what is the value of x that satisfies f(x^{2}) = f(x) + x^{2}? Question 2: How many different numbers between 250 and 400 have 2 as the tens digit? Question 3: Given 2x + 3y = 7 and y + 5z = 2, find 2x + 6y + 15z. Question 4: Given x > 0 and x^{2} = 1/3 + 2 + 2/5 + 19/15, find x. Question 5: If line l, described by the equation y = mx + n, is parallel to the x axis and passes through point (5,6), what is n? Question 6: Triangle ABC has the average of angles a and b equal to 50^{o}. What is the value of angle c? Question 7: If 15% of x is 45,what is 20% of x? Question 8: | 3x - 2 | = 8 | x + 1 | = 1 What value of x satisfies both equations above? Question 9: The area of a sector of circle C is one sixth of the area of the circle. What is the radius of the circle if the area of the sector is 6¶ ? Question 10: What is the value of (5^{x + 2} - 5^{x}) / (5^{x} - 5^{x - 2}) ? Press the Submit button to see the results.