Marcus and 3 friends collected $1,548 for charity and will give the same amount to 18 different groups.    how much money will each group get?   a. $516   b. $387   c. $172   d. $86

For this case we have the following variables:

x: total amount collected

y: number of groups

The relationship between the variables is given by:

Substituting values we have:

Making the corresponding calculation:

each group will get about:

D. $86

true statements:

a) x + y = y + x   ⇒ commutative property of addition

b) (x * y) * z = x * (y * z) ⇒ associative property of multiplication

d) (x + y) + z = x + (y + z) ⇒ associative property of addition

false statements:

c) x - y = y - x   should be: x - y = - y + x

e) (x - y) - z = x - (y - z) should be: (x - y) - z = x - (y + z)

step-by-step explanation:

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step-by-step explanation: