Witch expression is equivalent to j(j)(j)(j)(j)(j)(j)(j)(j)(j)(j)(j)( j)?

Factor the polynomial 8y^2 - 72 btw "^" means exponent

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Aball is dropped from a height of 10m above the ground. it bounce to 90% of its previous height on each bounce. what is the approximate height that the ball bounce to the fourth bounce?