Squaring is when you multiply a number by itself for example, 4 squared is 4x4
You would add 4y to both sides of the equation which would leave you with
4y - 3 = 8x
then you would divide the entire equation by 4 leaving you with
y - 3/4 = 2x
then you would add 3/4 to both sides of the equation leaving you with
y = 2x + 3/4
Answer: 30 dollars in total
Step-by-step explanation: first multiply 15 times 0.75 which is 11.25 then multiply 15 times 1.25 which is 18.75 if you add these two numbers together you get 30 dollars which is the total amount spent.
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The little lines through the two sides mean they are the same length.
When the two sides are the same length the 2 corresponding angles are also the same, so Angle A and Angle B are both 34 degrees.
The three inside angles of a triangle equal 180, so angle C = 180 - 68 = 112
Angle C is given as 4y, so 4y = 112
Divide both sides by 4:
y = 112 / 4
y = 28