An estimate helps you place the decimal point when multiplying because if you find out how many decimals there are and once you are done doing you estimated multiplication you put two decimal points after that.
Hope I helped some what and didn't make you confused.
Answer:
A) $4 for each $1 bet
Step-by-step explanation:
For example, 3:2 would be $3 for each $2 bet.
It's A!
Answer:
The system has one solution.
Step-by-step explanation:
We have two equations:
y = -2x - 4
y = 3x + 3
Equalling them:
y = y
-2x - 4 = 3x + 3
5x = -7

And

Replacing in the other equation we should get the same result.

So the system has one solution.
180 minus 90 equals 90, divided by 2, the answer is 45 degrees