You roll a 4 on a number cube and then you roll an even number on a different cube does thr first event affect the second event

What is the rule for reflection across the y axis

6.(q^9)^2 a. 2q^18 b. q^18 c. q^81 d.q^11 7.(6q^6)^-4 a. 6q^1296 b. 1296q^2 c. 1/1296q^24 d. 6q^-24 8. what is the value of 12x^-3 y^-1 for x = -1 and y = 5? a. -12/5 b.-10 c.-0 d.5/12

If the discriminant if a quadratic equation is 4 which statement describes the roots?