Try A
I think this is right
Hope this helps you :)
The line should equal 180 degrees, so we would subtract 122 from 180 to get 58 degrees. Since the triangle is equilateral, each angle is the same measure, so I believe m<1 should be 58 degrees.
Combine the like terms
-x-x^2+7
49.35 litres
47 times 1.05=49.35
(Sheldon got it right first)
X = 2 expand the brackets and then collect like terms (x's on one side) and then dived to get x on its own! :)
