A cars value is growing exponential. Select all the possible equations that represent this exponential situation,
Of(x) - 3400(1.5)"
g(x) = 2000(.8)"
= 1789 (3)
p(w) = (8)" . 1400
ºg(x) = 6( :)

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?