NEED HELP ASAP AND PLZ SHOW WORKKK

24 ft

Step-by-step explanation:

Let the height of the lantern = x.

Set the ratios:

Ratio of the lantern & shadow: (x/72)

Ratio of the man & shadow: (6/18)

*Note: Remember to consistently set the ratio. For me, I set it as the thing/man over the shadow. You can do the opposite, but both must be the same either (thing/person)/shadow, or shadow/(thing/person).

Set the ratios equal to each other, and cross multiply

(x/72) = (6/18)

(18x) = (6 * 72)

18x = 432

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Divide 18 from both sides:

(18x)/18 = (432)/18

x = 432/18

x = 24

24 ft is the height of the lightpost.

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart