Helppp please sos due today

Solve the equation x/4 - 5= -8 -27 -12 -7 12

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?