12.george is a salesperson in a jewelry store and earns $100 per week, plus 10% of his weekly sales. if george makes $425 in one week , what are his sales for that week? a. $5,250 b. $4,250 c. $4,000 d. $3,250 14. the owner of a computer store received a shipment of computers at a cost of $319.85 each. if he sells the computers for $412.99 each , what is the percent of markup? round to the nearest whole percent a. 23% b. 29% c. 77% d. 79% 16. find the final balance in an account with $660 invested at 3.5% annual simple interest for five years. a. $23.10 b. $115.50 c. $683.10 d. $775.50 my answers but check anyways ! 12) d 14) b 16) d

12) D is correct. $3,250 is weekly sales of George.

14) B is correct. Markup the price by 29%

16) D is correct. Final balance = 660+115.5 = $775.5

Step-by-step explanation:

Number 12) George is a salesperson in a jewelry store and earns $100 per week, plus 10% of his weekly sales.

Let us suppose his weekly sale $x

Total earn by a salesperson = 100+10% of x

We are given George makes $425 in one week.

Therefore, 100+10% of x  = 425

Now solve for x

0.10x=425-100

x=$3250

Thus, $3,250 is weekly sales of George.

Number 14)

Computer store receive a computer cost = $318.85

Computer store sells a computer = $412.99

We need to find what % of price markup

First we find difference of price = 412.99 - 318.85 = $94.14

Now we find what % change =

Therefore, Markup percentage =

Thus, Markup the price by 29%

Number 16)

We are given initial balance in account $660 at 3.5% annual simple interest.

We need to find final balance in account after 5 years.

Formula: Simple Interest = Principle x Rate x Time

where, Principle, P=$660 ; Rate, R=0.035 ; Time, t=5

SI=660 x 0.035 x 5

SI=$115.5

Total amount in account = P+SI

Final balance = 660+115.5 = $775.5

Thus, Final balance = 660+115.5 = $775.5

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation: