Aworld history class recently took its mid-
term exam. the following table represents
the array of scores.
х
| 20%
40%
60%
80%
100%
if a thirteenth student took the exam the
next day, what must that score be to arrive at
a class mean score of 60%?

Ofin . (2,4) (2,1) a. y= 2 b. x= 2 c. x= -2 d. y= 2x

Cherie works in retail and her weekly salary includes commission for the amount she sells. the equation s=400+0.15c models the relation between her weekly salary, s, in dollars and the amount of her sales, c, in dollars. interpret the slope of the equation.

Over the last 4 seconds, a snail has traveled 4/9 of an inch. if the snail traveled the same distance each second, how far did it travel each second?