Pls Hurry Which dimensions cannot create a triangle?

O three angles measuring 25°, 65°, and 90°

O three angles measuring 50°, 30° and 100°

O three sides measuring 5 in., 12 in., and 13 in.

O three sides measuring 4 ft, 8 ft, and 14 ft

Ifurniture stores having a weekend sale and is offering 20% discount on patio chairs and table the sales tax on furniture is 6.25 using function composition how can you represent the total amount a that you would need to pay for this furniture that cost x dollars

During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.