Answer:
Step-by-step explanation:
7.
2y² * 3x = 6xy²
8.
4v³ * vu²

= 4v⁴u²
9.
4a³b² * 3a⁻⁴b⁻³

= 12a⁻¹b⁻¹

10.
x²y⁻⁴ * x³y²



11.
(x²)⁰ = 1
12.
(2x²)⁻⁴


Good for Keira. Is there a question that goes along with this?
Answer:
5x
Step-by-step explanation:
The magic triangle is D and S and T where D is over S and T so if D is over s and t u dived and if the question is looking for D you would multiply S and T so 8 is the S i'm guessing and 15 is the T so ur gonna be looking for D so D=120 S=Speed D=Distance and T=time
i hope i helped you good luck
Then number is 3 because 3 times 5 is 15 and 15 plus 2 is 17. Hope this helps.