which expression is a difference of cubes?
o x6-6
o x6-8
o x8-6
o x8-8

- 8

Step-by-step explanation:

A difference of cubes has the form

a³ - b³

Note that is a perfect cube, that is , but

is not

8 is a perfect cube, that is 2³ , but 6 is not

Thus

- 8 ← is a difference of cubes

= - 2³

stew reads at the fastest rate of 265 words per minute.

step-by-step explanation:

it's a given that felicia reads at 260 word per minute and on connie's graph we can see that she reads 200 words per minute. since stew's table tells us that he read 795 in 3 minutes, we can divide 795 by 3 to find out how many words he reads per minute.

795/3 = 265

stew reads 265 words per minute - he reads at the fastest rate since felecia reads at 260 words per minute and connie reads at 200 words per minute.

stew (265) > felecia (260) > connie (200)