Lance wants to find the total length of 3 boards he uses the expression 3 1/2+[ 2 +4 1/2]

Match each inequality to the number line that represents its solution

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Laura read 1/8 of a comic book in 2 days. she reads the same number of pages every day. what part of the book does she read in a week