exam Maths Puzzle Numerical Ability

Yuri has a board that is 98 in. long.He wishes to cut the board into two pieces so that one piece will be 10 in. longer that the other. What should the legth of each piece be?

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exam Other Question

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Write the slope-intercept form of an equation of the line that passes through (-2,0) and is parallel to the graph of y=-3x-2

Can someone help me with this one.
Please explain how the graph of y=(1/2)^x+1 can be obtained from the graph of y=2x. Thank you.