What is total cost of three pairs of socks priced at 1.29 a pair, with a 6% sales tax?

$4.10

Step-by-step explanation:

Subtotal = (3 pairs of socks) x (price of socks):  

Subtotal = (3 x $1.29) = $3.87  

To get the overall total, you add tax, which is 6% of the subtotal:  

6% of the subtotal = 0.06 x subtotal = 0.06 x $3.87 = $0.23  

Subtotal + tax = $3.87 + $0.23 = $4.10

b

step-by-step explanation:

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584