Answer:

Step-by-step explanation:
The number to be added is the square of half of the linear term coefficient. Such coefficient in our case is "10" (the number accompanying the variable x). Then, half of it is 10/2 = 5, and that number squared gives 25.
Therefore, the number to add on bothsides of the equality is 25, which leads to the following:
This matches answer B) of your choices.
Answer:
Step-by-step explanation:
$10-$2.50=$7.50
$7.50/ $1.50 = 5
Answer:

Step-by-step explanation:
The exponential function looks like the following:
.
If the function passes through the point (2, 80), then:
→
Solving for 'b':
→
Then, the equation of exponential function that passes through the point (2, 80) is: 
<em>In base four, each digit in a number represents the number of copies of that power of four. That is, the first digit tells you how many ones you have; the second tells you how many fours you have; the third tells you how many sixteens (that is, how many four-times-fours) you have; the fourth tells you how many sixty-fours (that is, how many four-times-four-times-fours) you have; and so on.
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