Can anyone help me with my last math test question pls my grades are depending on this test so pls help and get me the right answer I will give a brainlest plsss!!!

A

Step-by-step explanation:

D

Explanation:

3/4 × 5/12

but you need to make the base has same amount. You need to change the 4 to 12. So, 4 × 3, and 3×3.

= 9/12

= 9/12 + 5/12

= 14/12

Price of one pound of mercury

Price of one cubic inch of mercury

Step-by-step explanation:

From the question we are told that

Mass of mercury

Price of 76 pound

Density of mercury is

Generally the cost of one pound of Mercury x will mathematically be given as

Generally the cost of one gram of Mercury G will mathematically be given as

Generally the cost of one cubic centimetre of Mercury c will mathematically be given as

Generally the cost of one cubic inch of Mercury z will mathematically be given as