Hello there!

Explanation:
↓↓↓↓↓↓↓↓↓
First you had to switch sides.

Then you add similar elements.

Divide by 7 from both sides of the equation.

Simplify it should be the correct answer.

Answer⇒⇒⇒⇒⇒t=-2/7
Hope this helps!
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-Charlie
Steps:
$549/4 people
= $137.25/person
20% of $137.25
= 0.2 x 137.25
= $27.45
$27.45 + $137.25
= $164.70
therefore, mike will pay $164.70: $27.45 as a tip to the deckhand and $137.25 for his individual share of the entire trip.
Answer:
157
Step-by-step explanation:
Let the number Angad was thinking be 'x'
Equation:-
1/2(x) = 78.5
x = 78.5(2)
x = 157