Alexis runs a small business and creates recordings of her friend’s skateboard stunts. she puts the recordings onto blu-ray and sells them online. she realized that the average cost of each blu-ray depends on the number of blu-rays she creates, because of the fixed cost. the cost of producing x blu-rays is given by
b(x) = 1250 +1.75x
1) alexis wants to figure out the price to charge friends for the blu-rays. she doesn’t want to make money at this point since it is a brand new business, but does want to cover her costs. suppose alexis created 50 blu-rays. what is the cost of producing those 50 blu-rays? how much is it for each blu-ray?
my algabra grade dpends on it

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