300-7[4(3+5)]3•3 does the bracket mean you divide I can’t remember I know you would use pemdas

do you mean add both of the equations together

because if you do the answer is 10x-5

step-by-step explanation:

21

jk it's 20

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!