A ) y = 2(3) + 7
y = 15
b ) y = 2(-3) + 7
y = 1
5
Step-by-step explanation:
Length (L) = u
Breadth (b) = 6 mi
Perimeter (P) = 22 miles
Now we know
P = 2 (L+ b)
22 = 2 ( u + 6)
11 = u + 6
11 - 6 = u
u = 5
If the number of days is d and he writes 3 pages for every d, then we can say
3d = 81
