A school had 600 students, 25% were 6th graders, 35% were 7th graders the rest were 8th graders. How many students at the school are 8th graders?

A 240

B 360

C 40

D 30

240

Step-by-step explanation:

25% of 600: 150

35% of 600: 210

210+150= 360

600-360 = 240

maximum area = xy = (16)(32) = 512 ft2

to maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.'

source