He has seven models because 21 divided by 3 is seven
Answer:
11) 67%; 12) 25%
Step-by-step explanation:
Problem 11: Find the fraction representing 30 out of a total of 45, and then multiply the result by 100%:
30/45 = 2/3 = 0.67; then we see that 30 is 67% of 45.
Problem 12: Same method:
16/64 = 1/4 = 0.25. Mult. this by 100%: 16 is 25% of 64.
Is it asking for the perimeter of a square?
I think it's 9 cause 4x4 equals 16 and 144/16 equals 9
