Please show work image below includes the questions.

Evaluate this exponential expression,8. (2 + 3)2 – 42

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents

Find the mass in grams of 1.37x1020 particles of h3po4