Mark lost all but 3/4 of his marbles in a game of marbles. He then won 15 more. He now has 120 marbles. How many did he start with?

To show that polygon abcde is congruent to polygon fghij, a must be used to make the two polygons coincide. a sequence of two transformations that can be used to show that polygon abcde is congruent to polygon fghij is .

Use the quadratic formula to solve 5x=6x^2-3,what are the values of x?

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6