Evaluate the expression 18−(−4)−8 by rewriting the subtraction as addition

18-(-4)-8 is the same as 18+4-8, or 14. You can't write the -8 as addition, but you can write the first part.

Hopefully this helps! Let me know if you have any more questions.

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x

first, let's see what the pattern is.

58 - x = 47

46 - x = 36

x = 9

so this means that the term after 25 is 25 - 9:

the next term in the sequence is 16.