Answer:
the pair of equations y = 3, z = 7 represent the intersection of two plans, The set of points is (0,3,7) and the line is parallel to x axis.
Step-by-step explanation:
Consider the provided equation.
y=3 represents a vertical plane which is in xy plane.
Z=7 represents a horizontal plane which is parallel to xy plane
The both planes are perpendicular to each other and intersect.
y=3 and z=7 is the intersection of two plans, where the value of x is zero y=3 and z=7.
The set of points is (0,3,7) and the line is parallel to x axis.
Christopher read 2 books each month which mean 4 books in 2 months
The racer take 4 hours (between 8:00 to 12:00) to race 3/4 of 6 miles
3/4 of 6 miles = 18/4 = 4.5 miles
4 hours ⇒ 4.5 miles
1 hour ⇒ 4.5 ÷ 4 = 1.125 miles
The time taken to complete 6 miles = 6 ÷ 1.125 = 16/3 hours = 5.3 hours
Mr. Zorn had skated total 17 miles.
<u><em>Explanation</em></u>
The length of the exercise trail around the Westwood park is 3 miles.
Mr. Zorn is skating around the trail 5 and 1/2 times.
So, the distance skated in 5 times 
and the distance skated in 
of the trail 
Thus, the total distance he had skated will be: 
<em>(Rounded to the nearest mile)</em>
Change your ten ones to a single ten
to show the new ten right a 1 in the ten column
