Eli will photograph a wedding for a flat fee of ​$880 or for an hourly rate of ​$120. For what lengths of time would the hourly rate be less​ expensive? The hourly rate would be less expensive if the wedding was less than ___ hours long.

7 hours

Just divide 880/120 = 7.3333333

So if 7*120 = 840

An hour more would be more expensive.

180°

step-by-step explanation:

sum of equilateral triangle=180°

< n=60°

< m=120°°[angle supplementary of equilateral angle]

< m+< r+< x=360°(sum of exterior angle of triangle)