Respuesta :
Answer:
A) a + a and D) 2a
Step-by-step explanation:
A) a + a is equivalent to 2a because when you add two quantities of 'a' together, you end up with a total of 2 'a's.
D )2a is also equivalent to 2 × a because when you multiply 2 by 'a', you get 2a.
Therefore, both A) a + a and D)) 2a are equivalent expressions to 2×s
D (2a) since any number multiplied by an unknown variable is written in this form.
