Answer:
The correct option is 1. The area of cross section area is 48 mm².
Step-by-step explanation:
From the find it is noticed that the cross section is a rectangle with length 4 mm and width is 12 mm.
The area of a rectangle is the product of its dimensions.

Where, l is length of the rectangle and w is width of the rectangle.
The area of cross section is


Therefore the area of cross section area is 48 mm². Option 1 is correct.
The relation of t as in to what?
Answer:
Step-by-step explanation:
-9/10 or -0.9
Linear. Each increase of 1 in x means a decrease of 3 in y, so it has a consistent slope of -3
Answer:
4/10
Step-by-step explanation:
when converting fractions, you multiply the numerator and the denominator by the same number. In this case, multiply it by 2, giving you 4/10.