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
Answer:
2
Step-by-step explanation:
10 divide by 5 is 2
Answer:
C) -6-(-3)=3
Step-by-step explanation:
-6-(-3)=
-6+3=
-3 (Not positive 3)
So the third one is incorrect
Step-by-step explanation:
Since 8.7b = (-2.9) * (-3b),
and -11.6 = (-2.9) * (4),
8.7b - 11.6 = -2.9(4 - 3b).
Answer:9/15
Step-by-step explanation:
You change 2/5 to 6/15 by multiplying each by 3 then adding it to 3/15 to get 9/15.