Question

Answer please my exams coming soon​

Answer 1

Answer:

HERE IS THE ANSWER ⬆️

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HOPE IT'S HELPFUL

Answer 2

dimensions of brick

l = 30cm b= 10cm h = 7 1/2 cm = 15/2cm=7.5cm

volume = lbh = (30×10×7.5)cm³

= 2250cm³

dimensions of the wall

l = 30m = 3000cm

b = 3/4m = 0.75m= 75cm

h = 2m = 200cm

volume = lbh = (3000×75×200)cm³

= 45000000cm³

Number of bricks required = volume of the wall

volume of bricks

= 45000000cm³

2250cm³

= 20000

hence, 20000 bricks are required.

I hope this answer helps you.