Please help as fast as possible

Ngrid mixes 3.6 pounds of almonds with some raisins to make a trail mix. she divides the trail mix into 12 equal portions. each portion weighs 0.7 pound. how many pounds of raisins did she use to make the trail mix? express the answer to the nearest tenth.

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

What number line represents the solution set for the inequality -1/2 greater than or equal to 4