What is the distance around a triangle that has sides measuring 21/8 feet, 31/2 feet and 21/2 feet?

For which rational expression is -2 an excluded value of x?

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

Given the equation y − 4 = three fourths(x + 8) in point-slope form, identify the equation of the same line in standard form. −three fourthsx + y = 10 3x − 4y = −40 y = three fourthsx + 12 y = three fourthsx + 10