Used paperback books are $0.25 and hardback books are $0.50. if you buy 3 paperback book and 5 hardback books, how much money do you spend

$3.25

Step-by-step explanation:

First you need to multiply the price by the amount and then add them both.

3(.25)+5(.50) = 3.25 = $3.25

3.25$

Step-by-step explanation:

If one paperback book is 0.25 and you buy 3 of them, (0.25 x 3) is 0.75 and a hardcover is 0.50 per book, (0.50 x 5) is 2 dollars and 50 cents and if you add the two, you will get 3.25$

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead