While at concession stand, mr. townsend sees that the large tub of popcorn is $7.50, and large drink are $6 each. Using your answers from part A and part B, write an expression that represents the total cost. Then substitute the values for the popcorn and drinks in your expression. what is the total cost for the evening?

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step-by-step explanation:

you probably already have the answer but anyways it's b. 15.0

step-by-step explanation:

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.