Answer:
Take away 5 blocks from the left side
Step-by-step explanation:
Take away 5 blocks from the left side and then you will get 3 blocks on both sides then the scale will be balanced.
Answer:
(a) Equation: 
(b) 7.5 gallons
Step-by-step explanation:
Given
Current Gas = 10 gallon
Every Hour = -1.25 gallon
Solving for (a): An equation for the scenario
This question represents an Arithmetic Progression and will be solved using the following formula:

Where


Substitute these values in the formula


Collect Like Terms


Solving for (b): In this case, n - 3
Substitute 3 for n in 



<em>7.5 gallon of gas left</em>
It is $82, you divide 123 by three and multiply by two
P = 2 × 4in + 2 × 1in = 8in + 2in = 10in
<h2><u>
P = 10 in</u></h2>
Answer:
I hope you got it and it helped you