How to find the missing length of a triangle with angles and sides?

Melvin is making a large poster for the school carnival. he skeched his design on a 9 inch by 12 inch sheet of paper then he expanded his design by a scale of 3 what are the dimensions of the poster. What is the area of the poster

Going against the current, a boat takes 6 hours to make a 120-mile trip. When the boat travels with the current on the return trip, it takes 5 hours. What is the rate of the boat in still water? 2 mph 20 mph 22 mph

A car can travel 60 miles on 3 gallons of gasoline. How far can it travel on 11 gallons of gasoline?

Whats the standard deviation of 1,5,7,3,2,9,1

A rental company charges $50 plus $0.20/mi to rent a car. Marissa must spend under $184.60 on the rental. How many miles can Marissa drive the car?

If two angles in a triangle add up to138, then what is the size of the third angle

Kay has an 80% probability of making a free throw in basketball and each free-throw is independent. Kay gets to take two free throws and must make both to win the game. What is the probability that Kay's team will win the game?

Round the underlined digit 75,254

The GCF of 24 and 32 is

Which is a higher score 3 out of 10 or 5 out of 20?