Find the area of the polygon

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.

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?