1. mia buys 45 pounds of plums. the total cost
after using a coupon for 55¢ off her entire
purchase was $3.23. if c represents the cost of
the plums in dollars per pound, what equation
could represent the situation?

Asilkworm winds its cocoon out of one long silk fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their cocoons and combined into aa single thread with a typical length of 300 yards. choose a reasonable number of silk fibers in a thread write an equation to find the total length of the silk fibersused in 300 yards of the thread

Can someone check if i did this correct. it’s number 4 if you’re wondering.

What is the distance between a and b? round your answer to the nearest tenth. a coordinate plane is shown. point a is located at negative 1, 5, and point b is located at 4, 1. a line segment connects the two points.