If a test has good reliability: Question 22 options: it has been standardized using a representative sample. it accurately measures what it says it measures. it can be used to predict future performance. the test yields similar scores if taken at two different times.

"if it is my birthday, then it is snowing"

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