For question 1 the answer is B.
for question 2 the answer is C.
You move the decimal 6 places to the right: 1986000
Yes, is subtraction, to get their "difference".
first off, let's convert the mixed fractions, to "improper", and then subtract.

Answer:
See explanations for step by step procedure to answer
Step-by-step explanation:
Given that;
.f (x comma y )equals 8 x squared y minus 3 Confirm that the function f meets the conditions of the Second Derivative Test by finding f Subscript x Baseline (0 comma 0 ), f Subscript y Baseline (0 comma 0 ), and the second partial derivatives of f.
See attached documents for clearity, further explanations and answer
x= 4.5
18x - 9 = 72 are the equations
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- Elisha