No. of roots in eq 8sec^x-6secx+1=0

7x+8y=-18, 4x-9y=-3 solve the system of equations

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

The given dot plot represents the average daily temperatures, in degrees fahrenheit, recorded in a town during the first 15 days of september. if the dot plot is converted to a box plot, the first quartile would be drawn at __ , and the third quartile would be drawn at link to the chart is here