What was the total exposure time for Larry in hours and minutes?

What was the total time weighted average exposure in $dB(A)?$

Based on Larry's data, will a hearing conservation program need to be implemented?

Will Larry need to wear hearing protection throughout the workday?

Does OSHA require annual audiometric tests where time weighted average exposures are $85dB(A)$ or greater?

If safety engineers require Larry to wear earplugs having a noise reduction rating $($or NRR$)$ of $29dB(A),$ what will be the effect on the total time weighted average exposure?

Complete the following calculation $[90\mathrm{.}1$dB$($A$)$ TWA$]-[(29$ NRR $-7)50\%]$ to find the new TWA for Larry.

$\backslash$table$[[$Time In Time Out Location,Avg Noise dB$($A$)$ Dose $\%],[07$:$00$am$09$:$15$am Work Cell #$1,92],[09$:$15$am $09$:$30$am Morning Break $-$ Factory Cafeteria,$70],[09$:$30$am $10$:$30$am Factory Office,$60],[10$:$30$am $12$:$00$pm Work Cell #$2,91],[12$:$00$pm $12$:$30$pm Lunch $-$ Factory Cafeteria,$70],[12$:$30$pm $02$:$00$pm Work Cell #$3,91],[02$:$00$pm $02$:$15$pm Afternoon Break $-$ Factory Cafeteria $70,],[02$:$15$pm $3$:$30$pm Work Cell #$4,92],[,$Total Dosage$],[[90\mathrm{.}1]-[(29-7)\mathrm{.}5]=,]]$