John purchased a car for 11,100. zero value after 8 years.
This make and model uses straight line depreciation and will have zero value after 8 years ?

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

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class