Subtract -2k3 + k2 - 9 from 5k3 - 3k + 7.

 The required value is

Step-by-step explanation:  We are given to subtract the polynomial from

That is, we need to find the value of S, where

To perform the given subtraction, we need to combine the like terms as follows :

Thus, the required value is

y = 0.77(x)

step-by-step explanation:

the jacket retains this value after 23% cut or retains 77% of original value. plug original 87 jacket price for x and the remaining value should be y.

answer: x=60