Ireally need with this i couldn't figure this out no matter what i did
solve the linear equation for the variable
1/2y + 6 + 3/2y = 2y - 6y - 30

Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?