Two angles form a linear pair. if the two adjacent angles from are (4x) and (5x-27) then what is the measure of those angles

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this sequence if the first term is 0

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”?