120 is the right answer that is what my teacher told me
Answer:
a=6 or -6
Step-by-step explanation:
Solve the determinant to get a²-36=0
(a-6)(a+6)=0
a=6 or -6
The answer would be 12. To find this u would have to first add 8,12, and 15=36 Next, divide 36 by 3 =12
Yes he does because the final price would be $7.95.
The greatest common factor is 1 hope this helps you
