Rewrite the expression 3 (f+4) using the distributive property
f+

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?