Please help What is the value of x in the equation 4
8(4x+8)-(x+2) - 64 - x) = 4x2

Is fgh ~ jkl? if so, identify the similarity postulate or theorem that applies.

Math it's appreciated. (picture provided)

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”?