Robbie owns 15 % more movies than Rebecca, and rebeca owns 10% more movies than Joshua. If Rebecca owns 220 movies, how many movies do Rebecca and Joshua each have? ​

Robbie owns 253 & Joshua owns 198

220 x 1.1 = 253

220 x 0.9 = 198

step-by-step explanation:

to determine whether a given function is even, we simply substitute x with -x in the expression. if the result after simplification is identical to the original equation, then the function is said to be even other wise odd.

f(-x) = (-x)^2 - (-x) + 8

      = x^2 + x +8

the resulting function is not identical to the original one;

f(-x) ≠ f(x)

therefore, f(x) is not an even function