Answer:
a=possible amount
3a+28>200
Step-by-step explanation:
Answer:
the last one 
Step-by-step explanation:
Answer:
2x^2+x-15
Step-by-step explanation:
6x-15+2x^2-5x
2x^2+x-15
Answer:
x = ± 13
Step-by-step explanation:
Given
x² = 169 ( take the square root of both sides )
x = ±
= ± 13
Since 13 × 13 = 169 and - 13× - 13 = 169
In a triangle, the three interior angles always add to 180°
m∠B = 180 - 30 - 80 = 70°
<span>D: 70</span>