18 shells because since Mary has 6 and Tina has 3 shells all you have to do is multiply 6 and 3 to get 18
Answer:
12 its right
Step-by-step explanation:
Answer:
Fatima will nee to sell 10 cookies.
Step-by-step explanation:
15 minutes= 2 problems
75 / 15 = 5
2 x 5 = 10 problems
9514 1404 393
Answer:
2.25
Step-by-step explanation:
Add the square of half the x-coefficient to complete the square.
(-3/2)² = 9/4 = 2.25