1. Which of the following is a linear inequality in two variables? A. 7x - 4y = 3
C. 2t < 6
B. 4m + 3 < 23
D. 3 + 5t 2 3r

2. Which of the following is NOT a linear inequality in two variables?
A. 4a - 2b > 7
C. 6p 2
B. 4 + 8x < 14y
D. 5m + 6 > 3n

3. In linear inequalities in two variables, it has
solution/s.
A. O
B. 1
C. 2
D. Infinite

4. In the Inequality x + y = 5, which of the following in NOT a solution?
A. (4, 5)
B. (2, 2)
C. (1, 3)
D. (4,0)

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Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.

How many neutrons does an element have if its atomic number is 50 and its mass number is 166