Answer:
C.
Step-by-step explanation:
3(2x + 1)=6x + 3
3*2x=6x, 3*1 = 3
so therefore 3(2x+1)=6x + 3
40%=0.4
15*0.4
6
15-6
9 darts didn't hit the bull's eye
Answer: 30
Step-by-step explanation:
3+4+3=10 400/10=40 so each has 40 so math has 120 120*25=3000 for physics is 4*40 so 160 160*20=3200 9800-3000-3200=3600 3*40=120 3600/120=30
Answer:8640
Step-by-step explanation: 60 square feet would be 8640.
I assume it is the last one, 3n^2, because the degree is the exponent, which is two and the three is the coefficient, which is next to the variable, plus it is a monomial, so there is only one term, eliminating the first two, the third one is just reversed. Therefore, the answer should be the last one. Hope this helps. :)
