Tina bought two pairs of regular socks and one pair of long fleece socks. the fleece socks cost $12. if the final price, including 5% sales tax, was 30.45, what was the price of each pair of regular socks? .

write an equation for the purchase :

$12 + 2x + tax = $30.45

(12 +2x)* 1.05 = 30.45

solve for x to get

x = $8.5

the price of a pair of regular socks is $8.50

2 x^2 -3x+p

sum of roots = 3/2

let other root be x

3+ x = 3/2

x= 3/2 - 3 = -3/2

product of roots = p/2

3× -3/2 = p/2

-9 = p

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step-by-step explanation: