Answer:
2/5 or 0.4
Step-by-step explanation:
y2-y1/ x2-x1
y2=2, y1=0
x2=5, x1=0
Use desmos.com and graph those inequalities. It is pretty easy.
This is the diference of 2 perfect squares. 4 is a perfect square, x^2 is a perfect square, and 25 is a perfect square. The pattern for this is (ax + b)(ax - b). Our a is 2 since 2*2 = 4, and our b is 5 since 5*5 = 25. So your factors are (2a+5)(2a-5), choice C.
Answer is B: 150
write two equations
r+s=190
4r+3s=720
solve by substitution
the get r=150 s=40