(6xr)x7 use one or more properties to rewrite each properties as an expressions that does not use parenthesis

(6*r)*7 = 6*r*7 = 6*7*r = 42*r = 42r

None of these are helpful

To rewrite the expression (6x⋅r)⋅7 without using parentheses, we can apply the associative property of multiplication. This property states that for any three real numbers a, b, and c, (a⋅b)⋅c = a⋅(b⋅c).

Using this property, we can rewrite the expression as follows:

(6x⋅r)⋅7 = 6x⋅(r⋅7)

Now, we can simplify further using the commutative property of multiplication. This property states that for any two real numbers a and b, a⋅b = b⋅a.

Applying the commutative property, we can rewrite the expression as:

6x⋅(r⋅7) = 6x⋅(7⋅r)

Finally, using the commutative property one more time, we can rearrange the factors:

6x⋅(7⋅r) = (6⋅7)⋅(x⋅r)

Hence, the expression (6x⋅r)⋅7 can be rewritten without using parentheses as (6⋅7)⋅(x⋅r) or simply 42⋅(x⋅r).