Lena starts to use the standard algorithm to solve 39\times439×439, times, 4. Her work is shown below. \begin{aligned} \overset{\blueD{m}}3\overset{}9& ;\\ \underline{{} \times \phantom{} 4}&\\ 6& \end{aligned} 3 m 9 × 4 6 What number should Lena replace \blueD{m}mstart color #11accd, m, end color #11accd with?

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

Which of the following is a proper fraction? a. 9⁄8 b. 5⁄6 c. 7⁄3 d. 4⁄2

Given that sin∅ = 1/4, 0 < ∅ < π/2, what is the exact value of cos∅? a. (√4)/4 b. (√15)/4 c. (4π)/2 d. (4√2)/4