(b) The difference between the length (the longer side) and the width of a rectangle is 5cm. If the length is y cm, and the perimeter is 38cm, write an equation and use it to find the
dimensions of the rectangle

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!