Hi there!
All you need to do to solve for a is add 1.6 to both sides of the equation.
It will look like this:
a - 1.6 + 1.6 = -3.7 + 1.6
After this you will see that a = -2.1.
Hope this helps!
When in doubt just replace a with -2.1 and see if you still get -3.7. :)
280 divided by 7 = 40 pages every night
(28/7=4, add a zero)
By skipping the number for an example skip count by 2 so u go like 2 4 6 8 10 and so on its also how you mulitiply<span />
All you have to do is add all of the fractions up.
Answer: 5 Vertices
Step-by-step explanation: I believe if it had 4 faces and 8 edges it would have 5 vertices.