16y² - x² = 4²y² - x² = (4y)² - x² = (4y-x)(4y+x) ← dfference of squeares
Answer:
51
Step-by-step explanation:
24 ^2+45^2=x^2
=51
B is correct because
4 + 16 < 28
Answer:
4 more, for a total of 8 out of 24
Step-by-step explanation:
At the same rate, there will be 4 cows in any 12 animals you count. So, the next 12 will also have 4 cows. This will give 8 cows in 24 animals.