Answer:
55
Step-by-step explanation:
For the most part, the cross-section formed is a <em>trapezoid</em>, but if the slice passes through the apex of the pyramid, that shape is a <em>triangle</em>.
(Image source: MathCaptain.com)
Answer:

Step-by-step explanation:
Given expression,

By distributive property,

Again by distributive property,

Combining like terms,

Which is required product.
Answer:
Zn is zinc in the periodic table.
Hope this helps plz hit the crown :D