Liz received a gift of 9 songs for her birthday. She buys an additional 3 songs each month.

9+3

= 12

Step-by-step explanation:

9 +3 +

10

11

12

45 songs in one year (12months)

Step-by-step explanation:

in one year she will have the following

12 x 3 = 36

+ 9 given

36+9 = 45 songs in one year

if it was decreasing to 11 months or 10 months etc

Then we use this formula

Birthday + (Amount monthly x No of month)

9 + (3 x 11) = 42 in 11 months

or 9 + (3 x 10) = 39 in 10 months

hi how are you doing today? if you ever need just tell me

step-by-step explanation:

hi how are you doing today? if you ever need just tell me

step-by-step explanation: