39=3m-15
39+15=3m
54=3m
54/3=3m/3
m=18
Answer:
200 pieces
Step-by-step explanation:
20+60+120=200
Answer:
10=10
Step-by-step explanation:
Subtract 8 from 54. ( -3x = 46 ) Divide -3 from 46. Your answer should be about -15.3
Answer:

Step-by-step explanation:
we are given the base area and the height of a solid figure
since the base area is not perfect square
we assure the solid figure to be a cuboid
remember that,

we are given l×w is 40 and h is 7
so substitute

simplify multiplication:

hence,
the volume of the figure is 280 in³