Subtract. Write the difference in simplest form.
(5n - 3) - (-2n + 7)
7n - 10
3n + 4
3n - 10
7n + 4

7n - 10.

Step-by-step explanation:

(5n - 3) - (-2n + 7)

= 5n - 3 + 2n - 7    (Distributing the negative over the second parentheses).

= 5n + 2n - 3 - 7

= 7n - 10.

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

hey seth! : )

i’m not 100% sure, but i think it’s b

hope this ya : p

miss u!

- nicole