Complete the following: given: 8x-5=2x+1 and you have to prove x=1

Write the standard form of an equation with (see picture below)

Let f(x) = 1/x^2 (a) use the definition of the derivatve to find f'(x). (b) find the equation of the tangent line at x=2

Sarah needs 3 feet of fabric for a project she is working on, but the store only sells the fabric in meters. one meter of fabric costs $1.20. how much will the fabric cost?