147 let us let u = [ 47 21 -3 and a= 0 1 -2 . is u in the subset of r | 1 3 - 2 spanned by the columns of a? why or why not? select the correct choice below and fill in the answer box to complete your choice. (type an integer or decimal for each matrix element.) o a. no, the reduced row echelon form of the augmented matrix is , which is an inconsistent system. ob. yes, multiplying a by the vector writes u as a linear combination of the columns of a.

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

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.

Pls brainliest will be awarded if answer is correct