Ineed some on this math assignment question, i haven't been able to figure it out for a while now.

simplify this expression.
3^-2

w^-6

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

Each day jake donates money to the global.

Find the percent error of the measurement 4 cm