exam Maths Puzzle Numerical Ability

Two dice are rolled. Find the indicated probability.

What is the probability that the sum is even if the first die is 4?

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exam Other Question

Solve the system of equations by graphing. Then, classify the system.

x+y=9
x-y=5

What is the solution of the system?

Is the system consistent or inconsistent?

Are th Please help me learn how simplify and solve:
Fraction

7 over xto the neg 2