<h2>Answer:</h2>
3 ( x - 7 ) = 18
<h3>Explanation:</h3>
Let the number be x, so that
According to the Question,
The difference of a number and 7 will be x - 7
Then, three times the difference of a number and 7 is 18 will be 3 ( x - 7 ) = 18.
Step-by-step explanation:

Answer:
She must jog 7 laps in order to meet her goal.
Step-by-step explanation:
A more accurate answer would be that she needs to run 6 1/4 laps to meet her goal. However, because the problem states that she will not be running partial laps, then the number of laps she runs must be a whole number, which in this case works out to be 7 laps.
Answer:
√87 = q × q = q2
Step-by-step explanation: