Answer:
The number of protons is the answer
Answer:
you could have used a calculator
Step-by-step explanation:
-2.8
Dc is a side of the parallelogram
Answer:

13 glue sticks cost $25.22.
Step-by-step explanation:
4 blue sticks cost $7.76, this means that one glue stick costs
$7.76/4 = $1.94.
Let
be the cost of the glue sticks, and
be the number of glue sticks; then

We can use this equation to find the cost of 13 glue sticks; we just put
into our equation and it gives:

So 13 glue sticks cost $25.22.
X - 9 = 6
Add 9 on both sides
x = 15