Find the unknown angle measure.

<A + <B + <C = 180 degrees

<A + 72 + x    = 180 degrees

<A + x =  180 - 72

<A = 108 degrees.

x = 180 - 108

x = 72

13

step-by-step explanation:

divide the cost of the total of sodas you bought by the cost of one soda, for example:

$24.57 divided by $1.89 is 13 which means you bought 13 sodas