A hardware store mixes paints in a ratio of two parts blue to six parts yellow to make two gallons of lime green. A ratio of five parts blue to three parts yellow makes two gallons of ocean blue. A gallon of lime green sells for $31, and a gallon of ocean blue sells for $28. Find the cost of 1 quart of blue paint and the cost of 1 quart of yellow paint.

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.