Answer:
C. 7
Step-by-step explanation:
First you have to find the unit rate of this equation
The unit rate is 20 students for every 1 teacher because 40 divided by 2 is 20
so if you do 140 divided by 20 your answer is 7
there are 7 teachers
4.99x2=9.98. 11.45x3=34.35. 9.98+34.35=44.33. 6% of 44.33 is 2.6598. 44.33+2.6598=46.9898. So the total is $46.99
Answer:
y=1/3x+45 I think
Step-by-step explanation: