A birds nest is 12 feet above the ground. A mole's den is 12 inches below the ground. What is the difference in height of these two positions? A. 24 In
B. 11 Ft
C. 13 Ft
D. 24 Ft

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

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

What is the total surface area of this square pyramid?