Question

Please help!!!! I have zero clue how to do these

Answer 1

`\\ \tt\longmapsto 3x+9=129`

`\\ \tt\longmapsto 3x=129-9`

`\\ \tt\longmapsto 3x=120`

`\\ \tt\longmapsto x=120/3`

`\\ \tt\longmapsto x=40`

And

`\\ \tt\longmapsto 2y+2=122`

`\\ \tt\longmapsto 2y=120`

`\\ \tt\longmapsto y=60`

Answer 2

• See below

Explanation:

#4

Corresponding angles and sides of congruent figures are congruent.

∠J and ∠W are congruent angles:

• 2y + 2 = 122
• 2y = 120
• y = 60

KL and XY are congruent sides:

• 3x + 9 = 129
• 3x = 120
• x = 40

#5

Given:

• ΔABC ≅ ΔDEF

The order of vertices determines the corresponding angles and sides.

Congruent sides:

• AB = DE
• BC = EF
• AC = DF

Congruent angles:

• ∠A ≅ ∠D
• ∠B ≅ ∠E
• ∠C ≅ ∠F