Write each polynomial in standard from. identify the leading coefficient 2x^5-12+3x

-4d^4+1-d^2

4z-2z^2-5z^4

2a+4a^3-5a^2-1

Mary had at least an 80% on her test write an inequality to represent this situation

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

The area of square garden is 300m squared. how long is the diagonal?