Idon't unerstand what i'm supposed to do for these

heat = mass * c * temp change
175g 0.79j/gc 75 c

heat = mass * c * temp change
352g 1.65j/gc 25 c

heat = mass * c * temp change
268g 4.18j/gc 40 c

heat = mass * c * temp change
74g 0.21j/gc 67 c

these are the answers i'm supposed to match with each one
1.04kj
10.4kj
14.5kj
44.8kj

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature