Cost of a hat bought by Marcel = [tex] \$ 21.99 [/tex]
Cost of a pair of socks = [tex] \$ 3.99 [/tex]
Cost of 2 pair of socks =[tex] 2 \times 21.99 [/tex] = [tex] \$ 7.98 [/tex]
Total price of hat and two pair of socks = [tex] \$ (21.99 + 7.98) = \$ 29.97 [/tex]
A sales tax of [tex] 7.5 \% [/tex] on this purchase = [tex] 7.5 \% \times \$29.97 [/tex]
=[tex] \frac{7.5}{100} \times 29.97 [/tex] = [tex] \$ [/tex]2.25
Therefore, the total price including the sales tax = [tex] \$ 29.97 + \$ 2.25 [/tex]
=[tex] \$ 32.22 [/tex]
