Answer:
15) 37 16) -5x+13=-112, x=25 23) l=38, w=19
Step-by-step explanation:
15) l=5w+2, 2l+2w=88
2(5w+2)+2w=88
12w+4=88
w=7, l=37
16a) -5x+13=-112
16b) x=25
23) l=2w, 2l+2w=114
2l+l=114
l=38, w=19
The slope for (3,0) and (6,-3) is -1
I don't see any triangles
10/2= 5 so 5: 5 x 5 so the length is 25. 6/3 = 2 so 2: 2 x 5 = 10.
Area is length times width. 25 x 10= 250