Number of items bought by Isabella:
Number of skirts = Ns = 3
Pairs of jeans = Nj = 2
Number of sweaters = Nsw = 4
Price of a skirt = Ps= 35.99
Price of a pair of jeans = Pj = 49.99
Price of a sweater = Psw = 32.99
Expression to calculate how much Isabella spent = (Ns × Ps) + (Nj × Pj) + (Nsw × Psw)
Evaluating the expression by substituting with respective values:
Total Money Spent by Isabella = (3 × 35.99) + (2 × 49.99) + (4 × 32.99)
⇒ Total Money Spent by Isabella = 107.07 + 99.98 + 131.96
⇒ Total Money Spent by Isabella = 339.01