Answer:
y =2.5
Step-by-step explanation:
1.4y = 3.5
Divide each side by 1.4 to isolate y
1.4y /1.4 = 3.5/1.4
y =2.5
I think 20 hope that helps
The equation in standard form would be,

All you have to do is move -2/7x to the other side.
Hope this helped
:D
ANSWER
C) Triangle
EXPLANATION
Solving a triangle is the process of calculating unknown side lengths or angle measures of a triangle if certain of the side lengths and/or angle measures are known.
We use the sine rule and cosine rule to find the missing sides and angles.
If the triangle has a right angle, then this is a special case, where we can use the trigonometric ratios and the Pythagoras theorem to find the unknown angles and sides.