I  4b - 3  I  + 2 = 8

need help

Annie walked her dog 2 1/4 miles from her house to the dog park and 3/7/8 miles around the park.then she walked the same distance home.how many miles did she walk in all?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

What number line represents the solution set for the inequality -1/2 greater than or equal to 4