Plz help 100 points and brainliest

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

Which expression is rational? 6. , square root two, square root 14, square root 49

Write the equations in logarithmic form 9^4=6,561