Answer:
9/5
Step-by-step explanation:
it is because 3/1 × 3×5
so which means 9/5
12/20 can be simplified to 3/5
They are congruent because the angles are all the same for the one on the left the angles are 79° 43° and 58° and the triangle on the right the angles are 79° 43° and 58° you can say they are confident because of AA (Angle Angle) theorem which means that 2 angles are congruent which means both of the triangles are congruent.
Combine like terms
6w - 4w and 8 - 1
Final answer: 2w - 7