book Maths Puzzle Numerical Ability

What is 1 1/4 + -3/4=?

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book Other Question

- Determine how many solutions exist
- Use either elimination or substitution to find the solutions (if any)
- Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection

1. (8 points) y = 2x + 3 and y = -x - 4 f(x)=-2x g(x)= -2x-1

please help

thanks