Auniversal studios admission ticket is on sale for 20% off the original price of $115. if there is 7.5% sales tax, what is the final price of the ticket.

Need on this one asap im almost done with this subject

Jabari is power washing houses for a summer job. for every job, he charges an initial fee plus $30 for each hour of work. his total fee for a 4 -hour job, for instance, is $170 . jabari's total fee,f, for a single job is a function of the number,t, of hours it takes him to complete the job. write the function's formula.

Find the least common denominator for thesetvo rational expressions.n^2/n^2+4n+4 -3/n^2+7n+10