Determine which system below will produce infinitely many solutions.

−4x + 6y = 20
4x − 3y = −2

−2x + 4y = 18
4x − 8y = −36

3x − 2y = 5
−6x − 4y = −10

5x − 3y = 12
15x − 9y = 24

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

Ingredient c: 1/4 cup for 2/3 serving or ingredient d: 1/3 cup for 3/4 serving which unit rate is smaller