Question

can you find the area of each rectangle and type the correct code? please remember to type in all caps with no spaces.
puzzle #4
can you find the area of each rectangle?
answer choices
a: 30x + 15y + 1
b: 30x - 15y
c: 36x + 12y
d: 30x + 15y - 5
e: 36x - 12y - 12
f: 36x - 12y - 1
g: 30x + y
h: 36x + 2y
i: 30x - 15y
type the 4 - letter code into the answer box. all caps, no spaces.
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Explanation:

Step1: Calculate area of rectangle ①

Use the formula \(A = length\times width\). Here, length \(=2x + y\) and width \(=15\).

$$
LATEXBLOCK0
$$

This matches option I.

Step2: Calculate area of rectangle ②

Length \(=6x + 3y+1\) and width \(=5\).

$$
LATEXBLOCK1
$$

This matches option D.

Step3: Calculate area of rectangle ③

Length \(=3x - y+1\) and width \(=12\).

$$
LATEXBLOCK2
$$

This matches option E.

Step4: Calculate area of rectangle ④

Length \(=2y + 6x\) and width \(=6\).

$$
LATEXBLOCK3
$$

This matches option C.

Answer:

IDEC