The line l with equation 3x + y − 9 = 0 intersects the line m with equation 2x + 3y − 12 = 0 at the point A as shown in the diagram above.
a. Find, as exact fractions, the coordinates of the point A.
The region R1 is bounded by l, m and the y-axis.
The region R2 is bounded by l, m and the x-axis.
b. Show that the ratio of the area of R1 to the area of R2 is 25 : 18

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?

Arace is 10 kilometers long.markers will be placed at the beginning and end of the race course and at each 500 meter mark.how many markers are needed to mark the course for the race?