Tony works in a factory that produces 1,000 computers each day. When 50 computers were sampled, it was found that 7 were defective. Estimate how many defective computers are made each day. A. 140
B. 7
C. 169 - this one...?
D. 265
I kind of forget how to do these :[

A) 140

Step-by-step explanation:

1000/50=20

20(7)=140

The answer is A, 140

Because every 50 computers, 7 are defective. You need to apply that ratio to the 1,000, so 1,000/50 is 20. Now apply that to the ratio, (7) so 7*20 which is 140. Thank me later :D

$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