A) d+q=20
0.1d+0.25q=4.40 Let's just read what this says: first, # of dimes (d) plus # of quarters (q) is 20.The second equation can be called the VALUE EQUATION; it says that one tenth of a dollar ($0.10) times the # of dimes is part of the total monetary value, and that one quarter of a dollar ($0.25) times the # of 'quarter' coins is the other part of this stash, and it totals $4.40. VOTE FOR A.
Answer:um....
Step-by-step explanation:
Answer: comutative law
Step-by-step explanation:
Factor order does not change product.
Answer:
6th floor
Step-by-step explanation:
2-3+7
-1+7
6
It depends how you name the sides of triangle.
Look at picture at the result.

PS. Sorry for my terrible drawing but I did it as fast as possible :)