Select all of the linear equations that are in standard form. Group of answer choices 15x-14y=22 3x+5y=7 2.5x-y=17 -2x+8y=14 42x+0.4y=15

15x-14y=22

3x+5y=7

2.5x-y=17

42x+0.4y=15

Step-by-step explanation:

The standard linear equation of two variables x and y is given by :-

Ax +By = C , where A is a positive integers,  and B, and C are integers.

Therefore, from the given options the linear equations that are in standard form are

15x-14y=22

3x+5y=7

2.5x-y=17

42x+0.4y=15

[-2x+8y=14 is not in standard form ∵ -2 is a negative integer.]

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.

what