At the beginning of a lesson a piece of chalk is 4.875 inches long at the end of the lesson it is 3.125 inches long write the two amounts in expanded form using fractions?

Answer pls man im trying to get out of summer school

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?