PLEASE HELP ME I NEED THEM NOW WILL ALSO MARK BRAINLIEST AND WHOEVER TOOK THE INTERIM CHECKPOINT 2 FOR ALGEBRA 1 FOR K12 PLZ HELP I WILL GIVE 30-40 POINTS OR EVEN MORE ONLY IF CORRECT THANKYOU!

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

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?

Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?