Answer:


Step-by-step explanation:
because 8(8)=64 and 8 is the positive square root of 64.
because 17i(17i)=289i^2=-289(-1)=-289.


1) 72 inch
2) 3ft
3) 120 cm
4) 12yd
I’m not sure, you should install photomath tho it should say
Answer: 21
Step-by-step explanation:
1/3 = 7
7 * 3 = 21
1/3 = 7/21
C=1.9. this is an estimate.