What is the Productivity analysis of 2(a2+1/a2) - ( a-1/a ) -7

Which is an accurate comparison of the two data sets? the commute to work is typically shorter and more consistent than the commute home. the commute to work is typically shorter but less consistent than the commute home. the commute to work is typically longer and less consistent than the commute home. the commute to work is typically longer but more consistent than the commute home.

Rewrite the expression in z to the n power. the expression i was given is: 1 over z to the negative 1 half power.

Solve the system of equations. y=3x-1 and y=-2x+9. show work