HELP “”i need help with showing all work””
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Just needs a help with showing the work how to solve it!!

In the diagram below, dab and dac are adjacent angles. if mdac = 25°, what is mdab in degrees? what is mbac in degrees?

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?