3.Add. (-7p q + 6pq) + (4p'q - 8pq + 3) + (7pq + 7)

a. -11p q + 13pq +10
b. -3p q + 21pq + 10
c. -3p q + 5pq + 10
d. 4p q + 5p9 + 9

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step-by-step explanation:

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step-by-step explanation:

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!