A student wants to use the property (x - y) (x + y) = (x2 - y2) to find the product (26)(34). Which statement is true? The student should let z = 30 and y=2, then the product (26)(34) is 60 – 4.
The student should let I = 30 and y=2, then the product (26) (34) is 900 - 8.
The student should let I = 30 and y = 4, then the product (26) (34) is 60 - 8.
The student should let x = 30 and y = 4, then the product (26) (34) is 900 - 16.

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.

answer: chelsea has 55 brushes

step-by-step explanation:

5 x 11 = 55

5 + 55 = 60