A regular decagon has 10 sides. How many reflectional symmetries does a regular decagon have? 5 10 15 20

A matinee ticket costs $6 per adult and $1 per child. On a certain day, the total number of adults (a) and children (c) who saw a movie was 35, and the total money collected was $70.

1/2x+101=200 And 2x+3=x+x+3

Are all right triangles similar explain your answer

Justin is riding his bicycle. He rides for 17.6 kilometers at a speed of 11 kilometers per hour. For how many hours does he ride?

Jasmine has 4 glass ornanents:green, orange, brown, and purple. How many ways can she hang them in a row so that the green and brown ornaments are NOT next to each other.

Jayden has been reading a 275-page book for English class. On average, he has read about 10 pages in 15 minutes. With a deadline looming, Jayden realizes that he won't finish in time unless he skims through the rest of the book.

13. Dr. Jones took out a loan for a new medical instrument cleaning system. The interest paid on the loan was $650. The loan was for 24 months, and the interest rate was 2.75%. How much money did Dr. Jones borrow?

5/19,5/8,5/11,5/6 from greatest to least

Each team in a relay race has three members. The first member runs 5/6 mile. The second member swims 1/12 mile. The third member bicycles 7/8 mile. What is the total distance each team must cover?

A passenger car of a train can carry up to 90 passengers. Explain how you can use addition to find the number of passengers that can ride on a train with 4 passenger cars? What is another way to find the same solution?