Write an expression for the calculation double the product of 4 and 7

It Must be (4*7)^2

Step-by-step explanation:

(4*7)^2

=28^2

=784

If this is what you need: 2(4x7)

Product of= x

Double= 2

If not, then I will help if I can.

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.