Maddie mailed y letters in January. She mailed 3 times as many letters in February. In March, she mailed 10

letters more than half of what she mailed in January and

February together. If a letter costs $0.37 to mail, which

expression represents the amount of money, in dollars,

Maddie spent mailing letters in March?

I’m pretty sure the slope would be 1 since the x and y values increase by 1

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?