Answer:
B
Step-by-step explanation:
25y² - 16 ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b)
Given
25y² - 16
= (5y)² - 4²
= (5y - 4)(5y + 4) → B
212.85
55% = = 0.55
55% of 387 = 0.55 × 387 = 212.85
1.80 2.90 3. 135
1. 80°
2. 90°
3. 135°
