Answers:
Option #1: Natural selection causes advantageous variations to become more common over many generations.
Option #3: The result of natural selection in a population depends on the population's eviroment.
(0,-4)(5,1)
slope = (1 - (-4) / (5 - 0)
slope = 5/5 = 1
y = mx + b
(5,1)...x = 5 and y = 1
slope(m) = 1
now we sub
1 = 1(5) + b
1 = 5 + b
1 - 5 = b
-4 = b
y = x - 4
-x + y = -4
x - y = 4 <===standard form
To answer this question you will use the Pythagorean Theorem. a^2+b^2=c^2. In this case a and b are the same because it is a square. So 2x^2=1600 (c^2 where c=40). Solve this equation ( divide both sides by two and find the square root for both). Each side length should be approximately 28.3 cm.
For 2 strawberries, there are 5 grapes. So 16=2x8. Multiply 8 by 5 to get your answer of 40
By rounding off the first number which would be place value of thousands place