(pls im on a timer) how have paleontologists contributed to humans' understanding of the history of life? check all that apply. they created a record of life on earth. they grouped organisms by their similarities. they grouped organisms by the period in which they existed. they discovered that the first humans lived with dinosaurs. they discovered that life has existed since earth was created.

Question 51 ptssolve. assume the exercise describes a linear relationship.marty's tee shirt & jacket company is to produce a new line of jackets with a embroidery of atpvtenpoeyiliceorsuit ut itoare fixed costs of $59 u to set ud for production, andvariable costs of $39 per jacket. write an equation that can be used to determine the total costencountered by marty's company in producing x jackets. use the equation to find the total cost ofproducing 50 jackets.$2520s2532o $2540s2552