Vicki bought some items from the store. The table shows the store price for these items. 1. Potato salad = $2.25 per 1 1/2 pounds 2. Ham $2.00 per 1/2 pound 3. Cheese $0.60 per 1/4 pound 4. Turkey $3.50 per pound 5. Shrimp salad $5.50 per pound. Vicki spent between $18 and $20. Which combinations could she have purchased? Select all that apply. A. 4 pounds of turkey, 1 pound of ham, and 1/2 pound of shrimp salad B. 1 1/2 pounds of cheese, 2 pounds of ham, and 1 1/2 pounds of shrimp salad C. 3 1/2 pounds of potato salad, 3/4 pound of ham, 1 pound of cheese, and 2 pounds of turkey D. 2 pounds of shrimp salad, 1/2 pound of ham, 1 pound of turkey, and 2 pounds of potato salad

Potato salad=$2.25 / (1 1/2) = $2.25 / (1+0.5) = $2.25/1.5=$1.50 per pound

Ham=$2.00 / (1/2) = $2.00/0.5=$4.00 per pound

Cheese: $0.60 / (1/4) = $0.60/0.25=$2.40 per pound

A. 4 pounds of turkey, 1 pound of ham, and 1/2 pound of shrimp salad

1/2=0.5

Total cost: T

T=4 ($3.50) + 1 ($4.00) + 0.5 ($5.50) = $14.00+$4.00+$2.75→T=$20.75>$20 No

B. 1 1/2 pounds of cheese, 2 pounds of ham, and 1 1/2 pounds of shrimp salad

1 1/2=1+0.5=1.5

Total cost: T

T=1.5 ($2.40) + 2 ($4.00) + 1.5 ($5.50) = $3.60+$8.00+$8.25→T=$19.85

$18.00<$19.85<$20.00 Ok

C. 3 1/2 pounds of potato salad, 3/4 pound of ham, 1 pound of cheese, and 2 pounds of turkey

3 1/2=3+0.5=3.5

3/4=0.75

Total cost: T

T=3.5 ($1.50) + 0.75 ($4.00) + 1 ($2.40) + 2 ($3.50) = $5.25+$3.00+$2.40+$7.00→

T=$17.65

$18.00<$17.65<$20.00 Ok

D. 2 pounds of shrimp salad, 1/2 pound of ham, 1 pound of turkey, and 2 pounds of potato salad

1/2=0.5

Total cost: T

T=2 ($5.50) + 0.5 ($4.00) + 1 ($3.50) + 2 ($1.50) = $11.00+$2.00+$3.50+$3.00→

T=$19.50

$18.00<$19.50<$20.00 Ok

Answer: S he could have purchased combinations B, C, or D