3 + (5 + 7) Use the commutative property of operations to reverse the numbers in the expression.
a) (3 + 5) + 7
b) 3 + (7 + 5)
c) 7 + (3 + 5)

Use the associative property of operations to change the grouping after reversing the numbers in the expression.
a) (3 + 7) + 5
b) 3 + (5 + 7)
c) 5 + (7 + 3)

Evaluate the expression.
a) 10
b) 12
c) 15

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.

what statement? is there an image?

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

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answer:

at time x=0 we have 1000, at time x=1 we have 2000, at time x=2 we have 4000.  

so that's an initial value of 1000 and a ratio of 2,

y = 1000 (2^x)

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