What are the two classifications of real numbers

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

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

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"