Fatema has paid for a set of weekly guitar lessons. she writes 20 – 8 = 12 to find the number of weeks of lessons she has left. what does the 8 in the expression represent?
the number of lessons she will receive in all
the number of lessons she has left
the number of lessons she has already taken
the number of additional lessons she requested

lessons she has already taken

Step-by-step explanation:

20 =# of All lessons

8 = # of Lessons she took

12 = # of Additional lessons she requested

answer: (1,3) (3,-1) (5,-5) ?

step-by-step explanation:

answer:  

step-by-step explanation:

odd numbers are only divisible by 1 and itself.

even numbers are divisible by more than 1 and itself.

for example 6 is even because it is divisible by more than 1 and its self. 1 x 6= 6 ; 2 x 3= 6

and 7 is odd because only 7 x 1 equals seveb