Help me please :)

x = 4

Step-by-step explanation:

Given y is inversely proportional to x then the equation relating them is

y = ← k is the constant of proportion

To find k use the condition when y = 10, x = 2 , then

10 = ( multiply both sides by 2 )

20 = k

y = ← equation of proportion

When y = 5

5 = ( multiply both sides by x )

5x = 20 ( divide both sides by 5 )

x = 4

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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!