A sequence can be generated by using an=1/4an−1, where n is a whole number greater than or equal to 1. Given a7=20, what is a8?

2

5

40

80

2.56 is the width of the garden

step-by-step explanation:

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40