What is the ratio 175/250 written in word form and in lowest terms?

a.
3 to 5

b.
2 to 5

c.
7 to 25

d.
7 to 10

What can you determine about the solutions of this system

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.

What is the lcm of 16 and 40 ? 24 and 40 ?