Answer:

Step-by-step explanation:
See attachment for grid
From the attachment:
There are 10 cells on the horizontal axis and there are also 10 cells on the vertical axis.
This implies that, the measurement of each cell is:



The horizontal axis has 7 selected cells.
This measures

The vertical axis has 4 selected cells.
This measures

So, the selected area is:


or

Answer: 240 students
Explanation:
320 ÷ 8 = 40 (40 groups of 8)
40 x 6 = 240
Answer:
177 square cm
Step-by-step explanation:
The radius is half the diameter, so r=7.5 cm. Substituting into the formula for the area of a circle,
square cm.
each student recieves 2 slices of pizza because 4 pizzas cut into 8 slices divided among 16 students ot 4x8/16=2. 4x8=32 32/16=2