Which species is necessary for the survival of all the other species in the food web Ap3x

Which of the following expressions is equivalent to -1/4y - 2 1/4 + 1/2 (4-2y)? a. -3y + 2b. -3 1/2+4c. -4 1/2y+2d. -4 1/2y+2show ur work

Following the new zealand wars, the british government

Use complete sentences to describe scientists’ predictions for another earthquake in the same location. if applicable, provide an anticipated date of reoccurrence.