From 1940 to 1980, the consumer price index (cpi) increased from 28.6 to 89.4. if a gallon of milk cost $0.75 in 1940 and the price of milk increased at the same rate as the cpi from 1940 to 1980, approximately how much did a gallon of milk cost in 1980?

Beth divided 9 ounces of her granola recipe into 4 equal-sized amounts. she placed the amounts into individual bowls. the fraction 9/4 represents the number of ounces of granola in each bowl. which other number represents the amount of granola beth has in each bowl? (a) 1 1/4 (b) 2 1/4 (c) 1 3/4 (d) 3 3/4 i need !