Could someone help me with this it would mean a lot ! :)

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

Erinn wrote the equation –5x + 4y = 32 to represent her hourly wage (y) and how this wage has changed during each year that she worked at a company (x). what is the rate of change in erinn's hourly wage per year?

Given the following linear function sketch the graph of the function and find the domain and range. ƒ(x) = -5x + 4