ewq242qedwqewqe214214242qqwq2weedwq ewqe214214242qqwq2weedwqewqe2142142 42qqwq2weedwqewqe214214242qqwq2weed wqewqe214214242qqwq2weedwqewqe21421 4242qqwq2weedwqewqe214214242qqwq2we edwqewqe214214242qqwq2weedwqewqe214 214242qqwq2weedwqewqe214214242qqwq2 weedwqewqe214214242qqwq2weedwqewqe2 14214242qqwq2weedwqewqe214214242qqw q2weedwqewqe214214242qqwq2weedwqewq e214214242qqwq2weedwqewqe214214242q qwq2weedwqewqe214214242qqwq2weedwqe wqe214214242qqwq2weedwqewqe21421424 2qqwq2we

wht es dat

Step-by-step explanation:

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

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