Answer:
975
Step-by-step explanation:
650/(2/3)=650(3/2)=325(3)=975
Answer: C
Step-by-step explanation: x represents the number of classes, not the cost of classes.
All the sides add like a rectangle with two sides measuring 4 and two measuring 2 so you would add 4+4+2+2=12
First set everything to 0.

Giving you A= 1 , B= 1 and C= -5
Then input everything into the quadratic formula and either solve by hand or use a calculator.
Note exact values are found by hand, decimals are found using a calculator.