if a student answered 78 exam questions correctly out of 100 what fraction and what percentage of questions did the student answer incorrectly?

3x + 4y = 5 x- 3y = -7 solve by substitution

Select the correct answer from each drop-down menu. james needs to clock a minimum of 9 hours per day at work. the data set records his daily work hours, which vary between 9 hours and 12 hours, for a certain number of days. {9, 9.5, 10, 10.5, 10.5, 11, 11, 11.5, 11.5, 11.5, 12, 12}. the median number of hours james worked is . the skew of the distribution is

What is the value of x? assume that the line is tangent to the circle.