Ester bought 2 1/2meter telephone cord and a 45 cm internet cord. How many centimeters of cord does she have in all?

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!

answer: i ! the answer is   9000 seconds, also d

hope i

-lavira : )