Answer:
78
Step-by-step explanation:
∠A + ∠B + ∠C = 180 { Angle sum property of triangle}
42 + ∠B + 60 = 180
∠B + 102 = 180
∠B = 180 - 102 = 78
In similar triangles, corresponding angles are congruent.
∠S ≅ ∠B
∠S = 78°
Answer:

Step-by-step explanation:
If you foil this equation you will get:

And by dividing it, you will get;

That is your answer!
Scale = 88 feet/5.5 inch = 16ft/inch or 16 feet = 1 inch Width = 76 feet x 1 inch/16 feet = 4.75 inches.
Answer:
x=y+1 and x=y+ 2/3
Step-by-step explanation:
x=y+1 : Add 1 to both sides, switch sides
x=y+ 2/3 : Regroup terms, Subtract 3/2 from both sides, Multiply both sides by -1
Hope this helps!! :)