Find the numerical value of x=4 and y=5 . 3x^2+6y=

Perform the indicated operation. 8/a - 6/a + 7/a

Pick the expression that matches this description: a polynomial of the 5th degree with a leading coefficient of 7 and a constant term of 6 (choice a) 7x^5+2x^2+6 (choice b) 7x^6−6x^4+5 (choice c) 6x^7−x^5+5 (choice d) 6x^5+x^4+7

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.