Translate the sentence into an equation. Twice the difference of a number and 9 is 6. Use the variable b for the unknown number. Q=0 9 Check help please ​ help

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6