Hey, can someone teach me this? i haven't been at school to learn it and i have a quiz later.

example:
the scores on the sat form a normal distribution with a mean of 500 and a standard deviation of 100.

what is the minimum score necessary to be in the top 15% of the sat scores?

find the range of values that define the middle 80% of the distribution of sat scores.

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.

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