How many times thicker is earth's mantle than the thickest part of earth's crust

The Earth's mantle is 29 times thicker than the Earth's crust

Hope this helps! :)

b

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!