Maria travelled to Stockholm, Sweden to see the royal castle. Maria stayed at the Royal Hotel. She hired a cab that charged 8 krona to pick her up at the hotel and 3 krona per mile. She wanted to stop at the palace for tea and asked the cab to wait for her. The cost of waiting is 2 krona per hour. The cost of the tea was 25 krona. Maria was at the palace for two hours. She also shopped at the gift shop and spent 50 krona. Write an algebraic expression to determine the total cost of Maria’s excursion to the Royal palace in Stockholm, Sweden.

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

it alot will look like this 4.4

a and c

step-by-step explanation:

{x = -1/2 ,   y = -1

step-by-step explanation:

solve the following system:

{2 x + y = -2

{10 x - 3 y = -2

in the first equation, look to solve for y:

{2 x + y = -2

{10 x - 3 y = -2

subtract 2 x from both sides:

{y = -2 x - 2

{10 x - 3 y = -2

substitute y = -2 x - 2 into the second equation:

{y = -2 x - 2

{10 x - 3 (-2 x - 2) = -2

10 x - 3 (-2 x - 2) = (6 x + 6) + 10 x = 16 x + 6:

{y = -2 x - 2

{16 x + 6 = -2

in the second equation, look to solve for x:

{y = -2 x - 2

{16 x + 6 = -2

subtract 6 from both sides:

{y = -2 x - 2

{16 x = -8

divide both sides by 16:

{y = -2 x - 2

{x = -1/2

substitute x = -1/2 into the first equation:

{y = -1

{x = -1/2

collect results in alphabetical order:

answer:   {x = -1/2 ,   y = -1

answer: 12   they all have at least 28 days

step-by-step explanation: haha