+15 points] wendy's sister said she would pay wendy a quarter for every correct answer but wendy would have to pay a dime for every incorrect answer. if wendy made $3.80 after 25 problems, how many problems did she get correct?

She got 18 correct

How to do this:

25 x 25 = 6.25 if she got it correct

20 x 25 = 5.00 - 10 - 10 -10 -10 -10 = 4.50

18 x 25 = 4.50 - 10 -10 -10 -10 -10 -10-10 = 3.80

b

step-by-step explanation:

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950