(16÷4)+((12+2)+6)order of operations show ur work

Mindy bought 5/8 pound of almonds and a 3/4 pound of walnuts.which pair of fraction cannot be used to find how many pounds of nuts she bought in all.

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?