Khan academy: 98 degrees, 27 degrees and x. what is the value of x?

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.

Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

Find the slope of the line y =8/9x + 1.