Answer:
-7×-9
=63
Step-by-step explanation:
If u multiple - with -, I'll get + sign
7x+4=32
7x=28
X=4
Creo que así se ase
Answer:
C. 80
Step-by-step explanation:
5x10x.5=25
25x2=50
3x10=30
50+30=80
definition is valid since center is exactly 1radius away from any point on the outersurface.
other figures do not fit this defn
Evaluate 1.80/Y for y= 0.009
We replace 0.009 for y
So fraction becomes 
Now , to simplify the fraction we try to remove the decimal from denominator
0.009 have three digits after the decimal point, so we multiply by 1000 to remove the decimal point. Multiply top and bottom by 1000 to make equivalent fraction.

= 200
Answer is 200