Im a little confuse on this so i will need some help please!

Step-by-step explanation:

At least 2 heads means it cold have 2 heads or 3 heads

Count how many posibilities to have 2H or 3H are there

HHH, HHT, HTH, THH they are 4 posibilities

the probability to have at list 2 heads is

P = #of 2H and 3H / #of all outcomes = 4/ 8 = 1/2

i think asking google will you get the answer to that question

$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