Answer:
-21
Step-by-step explanation:
1-2+4-8+16-32
=-21
What page is it because I have the same math book?Unless you're not in 8th grade then I can't help.
It would just be the square root of 10y
so 10y under a radical. Assuming the y is to the power of 1/2
I’m pretty sure it’s 9, I haven’t done this in awhile though...