Answer:
y¹⁵-20y¹⁴
Step-by-step explanation:
I'm going to assume that your problem looks like this


which means we have

Answer:
C. 4:13
Step-by-step explanation:
there are 4 students in the 4th grade and 4+9= 13 so it is 4:13
12+4x^2+3x^3-2x is the answer.
Answer:
OC
Step-by-step explanation: