Answer:
60 stamps
Step-by-step explanation:
Has 33 now. Before adding 13 stamps, she had (33-13) 30. This is half of her total, since she already sold half. To get the whole, multiply 30 by 2. 60 She started with 60
Rectangle definitely not a parallelogram
Uhhhhhhhhhh i don’t really know
Slope intercept form is

, where 'm' is the slope and 'b' is the y-intercept.

Subtract 6x to both sides:

Divide 5 to both sides: