Find y if the line through (5, 2) and (7, y) has a slope of 4. Y=___

please someone help me the answer 5 is incorrect i need someone to explain it to me please

Measures of the angle of r, 31 s (x+4) t (3x+9)

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

Astrid spent $36 on new shoes. this was $12 less than twice what she spent on a new skirt. part a: which equation would solve for how much she spent on the skirt? part b: solve the equation in the workspace provided below. how much did astrid spend on her skirt?