exam Maths Puzzle Numerical Ability

Evaluate the following expression for a = 6, b = 3 and c = 4.
a � b + 2c

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exam Other Question

you have 80 yards of fencing to enclose a rectangular region. find the dimensions of the rectangle that maximize the enclosed area. what is the maximum area? can someone please help me with this problem:

Identif the intercepts
** THERE IS A GRAPH WITH A LINE GOING THROUGH X=1, Y=5 **

a. (1,0),(0,5)
b. (-5,0),(0,5)
c. (-1,0), (0,5)
d. (1,0),(0,-5)