exam Maths Puzzle Numerical Ability

grapg the functions y = x and y = square root of x on the same grapg by plotting points if necessary. show the points of intersection of these two graphs.

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exam Other Question

2(-5)-3(-4)
I tied doing this one in a line, but I came up with 28, which is not one of the options for the answer.
solve LOGa(8x+5) =LOGa(4x+29)

the a is lower than the word LOG. What does this mean?

Someone pleeze help