The length of a rectangular garden is 7ft more than the width. The perimeter is 50 ft. Find the width. Please its urgent! oh and SHOW WORK!!

Worth 20 points :)

Line cd passes through points c(1, 3) and d(4, –3). if the equation of the line is written in slope-intercept form, y = mx + b, what is the value of b? –5 –2 1 5

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq