Answer:
3a^2+12a
Step-by-step explanation:
3a(4+a)
3a*4=12a
3a*a= 3a^2
hi
14.4
Answer:6 apples cost exactly the same as 9 oranges. 10 apples and 10 oranges cost $7.50. Find the cost of 1 apple and the cost of 1 orange.