A3 letter password from the letters a b c and d the password cannot have the same letter repeated in it how many such passwords are possible

10x − 5y + 14 = 0 whats the answer pls

Mrs. sling bought a pound of green beans for $1.80. how much will mrs. tennison pay for 3 1/2 pounds of green beans?

An electrician cuts a 136 foot long piece of cable. one piece is 16 feet less than 3 times the length of the other piece. find the length of each piece