How many different arrangements can be made with the letter of the word 'm o r o c c o'

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

If 3x+8=3x+8 is it one solution or no solution

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.