A regular pentagon is rotated clockwise about center point P. P
Click on all the degrees of rotation that will carry the regular pentagon onto itself.
60°
729
90°
120°
144
180°
240°
270°
288°
o
300°
3249
360°
n

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons

i got 10.28 but that rounds up to 10.3

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d