What does y equal? A. 51 B. 39 C. 37

B. 39°

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

to Right

Algebra I

Equality Properties

Geometry

[Right Triangles Only] SOHCAHTOA[Right Triangles Only] tanθ = opposite over adjacent

Step-by-step explanation:

Step 1: Identify

Angle θ = y

Opposite Leg = 8

Adjacent Leg = 10

Step 2: Solve for y

Substitute [Tangent]:                    tan(y) = 8/10Simplify:                                         tan(y) = 4/5Inverse Trig:                                  y = tan⁻¹(4/5)Evaluate:                                        y = 38.6598Round:                                           y ≈ 39°

Ibelieve the total for the tip could be $21.90

Agc and bgd are vertical angles