A school principal wants to know what theme students prefer for the spring dance. There are 150 students in the 6th grade, 200 students in the 7th grade, and 187 students in the 8th grade. Select all the representative samples that can help the principal draw conclusions about which themes the students prefer.

A)The students in the 7th grade homerooms

B)The same number of students from each grade whose names are randomly selected from a hat

C)The members of the student council

D)Students who attended the winter dance

E)50 sixth graders, 67 seventh graders, and 62 eighth graders

At river bank, checking account customers earn 0.75% interest a month on their account balances, pay no service fees for writing checks, and pay a monthly $2.00 financial charge. calculate the income earned in one month on the checking account for a customer with an account balance of $1,000. a. $4.25 b. $5.50 c. $6.75 d. $7.25 checking account earnings at baker’s bank are expressed by the equation: i = -0.09x + 10.2. while the earnings at elite bank are modeled by: i = -0.02x + 7.5. in both cases, x is the number of checks written. at what number of checks will elite bank start generating more checking account income than baker's bank? a. 12 b. 25 c. 39 d. 42 emilio’s checking account had a balance of 728.32 at the beginning of the week. he wrote checks for the following amounts throughout the week: $99.48, $33.50, $18.23, and $72.05. he also deposited his paycheck in the amount of $1,109.90. what is his account balance at the end of the week? a. $1,192.35 b. $1,222.86 c. $1,540.52 d. $1,614.96