Step-by-step explanation: The standard formula for geometric sequence is an = a1 * r^(n-1) where r is the geometric factor and n is an integer. In this problem, upon substitution, an = 4*2^(n-1).
We have
(1) two rectangles 3' × 5'
(2) two rectangles 3' × 6'
(3) two rectangle 5' × 6'
The formula of an area of a rectangle: A = lw
l - length
w - width
A(1) = 3 · 5 = 15 in²
A(2) = 3 · 6 = 18 in²
A(3) = 5 · 6 = 30 in²
The Total Area:
<h3>T.A. = 15 + 18 + 30 = 63 in²</h3>
The answer is B, The product of 4 and what number is equal to 28. It is because, products are with multiplication. So it says "4 multiplied by a number (x) equals 28.
Answer:B