I'm not 100% sure but try A.
Answer:
a.) 102 b.) 99.4
Step-by-step explanation:
a. 34 x 3 = 102
b. 7[62 ÷ (52 − 42) + 8] =
or
or 99.4
The <em>horizontal</em> cross section of the given <em>right rectangular</em> prism is a rectangle with dimensions of 9 inches and 7 inches. (Choice D)
<h3>How to find the dimensions of the horizontal cross section</h3>
The <em>horizontal</em> cross section is <em>parallel</em> to the base of the <em>right</em> <em>rectangular</em> prism, whose dimensions are 9 inches and 7 inches, respectively. Thus, the <em>horizontal</em> cross section of the given <em>right rectangular</em> prism is a rectangle with dimensions of 9 inches and 7 inches. (Choice D) 
<h3>Remark</h3>
The figure is missing. We included the missing figure below.
To learn more on prisms, we kindly invite to check this verified question: brainly.com/question/318504