Brainliness - who ever adds me on snap first gets brainliness

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

Mr. thompson is on a diet. he currently weighs 260 pounds. he loses 4 pounds per month. what part of the story makes the relationship not proportional?

If a line is defined by the equation y = 5x + 2, what is the slope?