2 answers
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The two equations needed are options (b) and (d):
b. 1/4 * 11 = 2 3/4
This equation finds the total number of 1/4 gallon containers that can be filled by multiplying the volume of the light-blue mixture (11 gallons) by the number of 1/4 gallon containers needed to hold that amount (4 containers per gallon).
d. 4 3/8 + 6 5/8 + 2/8 = 11 1/4
This equation confirms that the volumes of blue and white paint mix to equal 11 1/4 gallons, which is the total volume of the light-blue mixture that needs to be divided into 1/4 gallon containers.