1/29+12/58+12/29=
i just need to simplify to the lowest terms
this is summer work and i'm kind of confused

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.

Kylie explained that (-4x+9)^2 will result in a difference of squares because (-4x+9)^2 (-4x+9)^2 =(-4x)^2+(9)^2=16x^2+81

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)