exam Maths Puzzle Numerical Ability

A tree casts a shadow that measures 5 m. At the same time, a meter stick casts a
shadow that is 0.4 m long. How tall is the tree?

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exam Other Question

Find the slope of the line through the following pairs of points.
(-5, -3) and (-5, 2)

Also, I am unable to load "equation editor" on my computer for some reason so how would I show the qraph on a word document?
I know this is not the type of question i wrote but i thought it was close .

solve x over 4 = x+2 over 5

a. x= 8
b. x= 7 over 2
c. x= 2
d. x= -10