Answer:
z*(z - 3) = 520
Step-by-step explanation:
Use the following representations:
Width: W
Length: L = W + 3, or W = L - 3
Area = L*W = L*(L - 3) = 520
Equation b) is the correct one: z*(z - 3) = 520
.7 min per day
3.5 ÷5=0.7
0.7×5=3.5 or 3 1/2
x=21
well, geez - just do the math!
3/7 * 49 = 21
0.005
23.32
