Express 84 as a product of its prime factors

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 approximate value of  x  in the equation below.–3.396–0.7080.3040.955

Find the solution set for this equation: t^2+7t=0 separate the two values with a comma.