Crystal earns $5.50 per hours mowing lawns. write a rule to describe how the amout of money m earned is a function of the number of hours h spent mowing lawns. how much does crystal earn if she works 3 hours and 45 minutes?

Ten times the square of a non-zero number is eqaul to ninety times the number

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655

Which of the following expressions cannot be simplified to x – 2?