Tom runs a marathon (26.2 miles) in 4 hours and 12 minutes. how many miles per hour does he run?

without calculating the answer, from the choices given, which is most reasonable?
a.12 kilometers per hour
b.6 miles per hour
c.3 miles per hour
d.20 miles per hour

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.