Answer:

Step-by-step explanation:
So we have the expression:

Distribute. Multiply (4x+5) to each term:

Distribute:

Combine like terms:

Add and simplify:

And this is in descending order, so it's in standard form.
Answer:
c=2 d=1
Step-by-step explanation:
10 1/2 =
10/1 + 1/2=
2/2 (10/1) + 1/2=
20/2 + 1/2=
21/2
Answer:
it is 6cm2
Step-by-step explanation:
because see how many faces does it have