The function f(x)=3/x+7x² is a polynomial
true or false

To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)

The price of a car has been reduced from $19,000 to $11,590. what is the percentage decrease of the price of the car?