Hello! Can somebody please help me answer for part (b) for numbers 12 and 13? Thank you!

0 I 0 The demand equation For the Roland portable hair dryer Is given as follows where x (measured In units of a hundred) Is the quantity demanded per week and p is the unit price In dollars. x=(225p2) (09315) (a) Is the demand elastic or Inelastic when p - 5'? O elastic inelastic I Is the demand elastic or inelastic when p - 10? o elastic O inelastic I (b) When is the demand unitary? (Round your answerto two decimal places.) (Hint: Solve E(p) - 1 for p.) p - (c) If the unit price is lowered slightly from $10, will the revenue increase or decrease? 0 increase 0 decrease I (d) Ifthe unit price is increased slightly from $5, will the revenue increase or decrease? 0 increase 0 decrease I The quantity demanded each weekx (in units of a hundred) of the Mikado digital camera 15 related to the unit price p {in dollars) by the demand equation x- J4on- 5p (05.9550). (a) Is the demand elastic or Inelastic when p - an? O elastic o Inelastic J when p - 60? o elastic O Inelastic J (b) When is the demand unitary? p - (c) If the unit price is lowered slightly from $60, will the revenue Increase or decrease? 0 Increase 0 decrease J (d) If the unit price ls Increased slightly from $30, will the revenue lncream or decrease? 0 increase 0 decrease J