exam Maths Puzzle Numerical Ability

If you have 2 inequalities such as
y>7
6x-y<-1

how do you know where do shade on a graph for those inequalities, and how do you find the exact intersection point?

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exam Other Question

I have a quadrilateral with four points on the corners F L M P. There's a segment goint from point L to P. Creating angles 1 and 3 by L and 4 and 2 by P. Given: angle F is congrue The following pie chart represents the eye color of students in a certain class.
other=17% blue = 33% brown = 50%

If there were 82 students in the class, how many students had brown eyes?