Alison and justins father donated $3 every lap they swam in a swim-a-thon. alison swam 21 laps and justin swam 15 laps. use the distributive property tp find out the amount of money their father donated/

The total amount of money Alison and Justins father donated be $108 .

Step-by-step explanation:

Distributive property.

Let a, b and c be any real numbers.

Thus

a.( b + c ) = a.b + a.c  

This is distributive property.

As given

Alison and Justins father donated $3 every lap they swam in a swim-a-thon.

Alison swam 21 laps and justin swam 15 laps.

Total amount of money Alison and Justins father donated = Cost of each lap (Number of laps of Alison father  + Number of laps of Justins father )

As

Cost of each lap = $3

Number of laps of Alison father = 21 laps

Number of laps of Justins father = 15 laps

Putting in the above

Total amount of money Alison and Justins father donated = 3(21 + 15)

                                                                                                = 3 × 21 + 3 × 15

                                                                                                = 63 + 45

                                                                                                = $ 108

Therefore the total amount of money Alison and Justins father donated be $108 .

i do not know this sorry : (

y/x=18

step-by-step explanation: