A student received a coupon for 19​% off the total purchase price at a clothing . Let be the original price of the purchase. Use the expression below for the new price of the purchase. Write an equivalent expression by combining like terms. b-0.19b

the equivalent expression is 0.81b

Step-by-step explanation:

The equivalent expression is shown below:

Let us assume the original price of the purchase be b

Given that

b - 0.19b

= (1 - 0.19)b

= 0.81b

hence, the equivalent expression is 0.81b

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.

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step-by-step explanation: