Answer:
240, 1800, 2040
Step-by-step explanation:
First find the surface area of the shape - base = 3 x 15 x 2 + 40 x 15 + 40 x 3 x 2 = 930 m ^2
Now find the area of base = 40 x 15 = 600
Now, the cost of painting = 10 pounds for 25 m^2. SO here cost = 600 / 25 x 10 = 24 x 10 = 240 pounds.
Now cost of tiles = 600 x 3 = 1800
Total cost = 1800 +240 = 2040
Answer:
C
Step-by-step explanation:
9x^2-49y^2
Am sorry I try but I cant
<h2>
Answer:</h2>
<u>24.</u>
<h2>
Step-by-step explanation:</h2>
<h3>1. Write the expression.</h3>
<h3>2. Substitute the variables by the respective given value using <u>parenthesis</u>.</h3>
<h3>3. Simplify the expression by applying the hierarchy or mathematical operations.</h3>
<em>a) Solve parenthesis.</em>
<em>b) Solve the exponent.</em>
<em>c) Divide.</em>
<em>d) Subtract.</em>
