In solving the following system by the substitution method, select the one step which could occur.

{6x+3y=33x−y=1

question options:

6(1−y)=33

6(1−y)+3y=33

6(1+y)=33

6(1+y)+3y=33

Danielle has $127.02 in her account before making any transactions. over the course of a week, danielle makes the following transactions: transaction debit ($) credit ($) birthday check 75.00 night out 66.14 garage sale proceeds 121.58 charitable donation 42.25 doctor’s appointment 115.30 at the end of the week, how much money is in danielle’s account? a. $99.91 b. $27.11 c. $184.41 d. $142.16 select the best answer from the choices provided a b c d

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?