Answer:
a. I'm not sure if there's more to the question but I can't answer without knowing how many is the whole class
B. 12 boys
2m = 200cm
200cm-65m= 135cm
:)
Answer: 243, 729
<u>Step-by-step explanation:</u>
1, 3, 9, 27, 81 is a geometric sequence where r = 3
a₁ = 1
a₂ = 1 x 3 = 3
a₃ = 3 x 3 = 9
a₄ = 9 x 3 = 27
a₅ = 27 x 3 = 81
To find the next two terms, multiply the previous term by 3:
a₆ = 81 x 3 = 243
a₇ = 243 x 3 = 729
Answer: 34.93 units
Step-by-step explanation:
The volume of a rectangular prism can be calculated with this formula:

Where "V" is the volume, "B" is the base area and "h" is the height.
Since we need to find the height, we must solve for "h":

We know that the volume of that wooden chest (which is in the shape of a rectangular prism) is 524 cubic units and the base area is 15 square units. Then:

Subsitituting these values into
, we get that the height of the chest is:
