30%of 68 = 30/100*68= 3*68/10=204/10=20.4
Answer:
No, the given polynomial is not prime.
Step-by-step explanation:
Given: a polynomial 
To check: whether the given polynomial is prime or not.
Solution:
A prime polynomial is a polynomial that cannot be factored into polynomials of lower degree and has integers as coefficients.
In the given polynomial, coefficients are integers.
Also, the polynomial
cannot be factored further into polynomials of lower degree.
So, the given polynomial is not prime.
19.......................................
Answer:
She will pay $216 if she uses the coupon.
Step-by-step explanation:
Since the coupon is 1/7 off, you do 1/7 * 252 = 36. So she saves $36 with the coupon. Subtract the coupon from the total purchase. $252 - $36 = $216.