HELP 12 pts!

thank you in advanced
ΔABC is similar to ΔMNO. Solve for the value of the missing side.

a. x = 0.384 cm

b. x = 0.48 cm

c. x = 2.4 cm

d. x = 3.75 cm

Describe all the numbers that when rounded to the nearest thousand are 645,000

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

Mrs. gehrke said cheddar weighs 16.8 pounds. he actually weighs 15.2 pounds. what is the percent error?