At a restaurant the cost for a breakfast taco and a small glass of milk is $2.05. The cost for 3 tacos and 4 small glasses of milk is $6.90. Write a pair of equations that can be used to determine t, the cost of a taco, and m, the cost of a small glass of milk. Use your equations to find the cost of each item.

Step-by-step explanation:

t +  m = 2.05 (i)

3t + 4m =6.90 (ii)

Multiply equation(i) by (-3)

(i)*(-3)     -3t - 3m = -6.15

(ii)          3t + 4m  = 6.90  {Now, add. So, t will be eliminated}

                    m   =$ 0.75

Substitute the value of m in equation(i)

t + 0.75 = 2.05

t  = 2.05 - 0.75

t = $ 1.30

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.