T-shirts R he advertises shirts as shown below Which quantities in the advertisement represent a unit rate?
O 3 white shirts to 2 black shirts
O 2 black shirts for every 5 shirts
O $10 per shirt
O $50 per shirt

55? i think maybe

step-by-step explanation:

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

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,