Q4. Please answer all the parts to this question

A crime-scene investigator has 3.4 ounces of a sample. He needs to conduct four tests that each require 0.6 ounces of the sample, and one test that requires 0.8 ounces of the sample. How much of the sample remains after he uses it for the five tests?

Solve: 0.14h+0.12=0.35h2.4 .

Express the given quantity in terms of the indicated variable. The sum of three consecutive even integer; n=first integer of the three