A=1/4 and b=6
16a-4b

a=1/4 and b=6
5b/32a=

a=1/4 and b=6
12a+(b−a−4)=

Answers & Step-by-step explanation:

#1. Insert given values:

Simplify multiplication from left to right. Use the rule :

Simplify multiplication:

Simplify subtraction:

#2. Insert given values:

Simplify multiplication:

Simplify multiplication. Use the rule :

Simplify division:

Simplify fraction:

#3. Insert given values:

Simplify subtraction within parentheses. Convert to fractions. Use the rule :

Make all denominators the same. Multiply top and bottom by 4 (only do this to the fractions with 1 as the denominator):

Simplify subtraction. Subtract the numerators. The denominator will stay the same:

Insert:

Simplify multiplication. Use the rule :

Insert:

Simplify addition. Convert the whole number to a fraction. Use the rule :

Multiply top and bottom of the first term by 4:

:Done

the correct answer is $7.38

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!