I am confused by these 2 questions.

Use technology or the z-distribution table on pages A-1 to A-2 in the reference guide to solve. (here is the link to the book) https://k12reader. kitaboo. com/k12reader/kitaboo-reflowable. html#/main/https;%7C%7Ck12reader. kitaboo. com%7C72568%7Chtml5%7C72568?readerT ype=new&pageMode=double&pag e=A2

4) The scores on a standardized test are normally distributed with a mean of 500 and a standard deviation of 100. Suppose 6000 students took the test. Approximately how many students scored above 490?
A) 5048

B) 3239

C) 2761

D) 952

5) Lengths of newborn girls are normally distributed with a mean of 49.2 cm and a standard deviation of 1.8 centimeters. Consider a group of 2000 newborn girls. How many girls will be 51 centimeters or shorter?

A) 1683

B) 1856

C) 1928

D) 1964

Which composition of similarity transformations maps polygon abcd to polygon a'b'c'd'? a dilation with a scale factor less than 1 and then a reflection a dilation with a scale factor less than 1 and then a translation a dilation with a scale factor greater than 1 and then a reflection a dilation with a scale factor greater than 1 and then a translation

Glenda makes an online purchase for picture frames for $12.95 each and formats of $5.89 each the site says it taxes paid by the customer or 6.5% of the total purchase price shipping charges are based on the

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