Rationalize the denominator of square root of negative 9 over open parentheses 4 minus 7 i close parentheses minus open parentheses 6 minus 6 i close parentheses.

Kayla has a $500 budget for the school party.she paid $150 for the decorations.food will cost $5.50 per student. what inequality represents the number of students,s, that can attend the party?

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

If 25% of y is 30, what is 60% of y?