Which expressions are equivalent to 7 (negative three-fourths x minus 3)? Select two options.
Negative 5 and one-fourth x minus 21
Negative 7 and three-fourths x minus 7 (3)
6 and one-fourth x minus 21
6 and one-fourth x minus 4
7 (Negative three-fourths x) minus 7 (3)

circumference divided by 3.141592654 then timesthe radius twice

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice

answer: 12   they all have at least 28 days

step-by-step explanation: haha

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places