Answer:
Step-by-step explanation:
We are told that Jeanette uses 18 square inches of paper for each card, for us to get the number of square inches she will need to make 150 cards, we will use the equality operation;
18 in² = 1 card
x in² = 150 cards
cross multiply
x * 1 = 18*150
x = 2700 in²
Convert 2700 in² to feet²
Since 1in² = 0.00694444ft²
2700in² = x
cross multiply
x = 2700 * 0.00694444
x = 18.749988ft²
Hence she will] need 18.749988ft² to make 150 cards