Given the proportion, a/b=12/19, which ratio completes the equivalent proportion a/12?
1.) b/19
2.) 12/19
3.) 19/b
4.) a/19

The mathematical expression 9€ t means

Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.

The interior angles formed by the sides of a hexagon have measures that sum to 720°. what is the measure of angle a? enter your answer in the box. m∠a= °