exam Maths Puzzle Numerical Ability

How do you subtract this rational expression: 7/x-5 - 2+x/x-5? whats the answer?

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exam Other Question

A Daycare center chrages a $75 enrollemnt fee plus $100 per week. The function f(x)=100+75 gives the cost of daycare for x weeks. Graph this function and give its domain and range find slope and y-intercept
y = 5x- 4