I’m stupid and have no friends idc anyways can u help I’ll mark brainliest who ever helps me get it correct if it’s not correct comment on any question that is incorrect(I copied and pasted this)

225/100 of last years cost. write each fraction as a decimal and as a percent

Richard save $32 in march he saved $48 in april and $38 in may then richard spent $113 on a keyboard how much money does richard have left

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