Answer: 3 + a + 10b
Step-by-step explanation: combine like terms
Answer: There are 60 ways that they can travel to the concert.
Step-by-step explanation:
Since we have given that
Number of people want to go to a concert = 12
Number of cars = 3
Number of drivers in the group = 5
So, using the "Fundamental theorem of counting":
We get that

Hence, there are 60 ways that they can travel to the concert.
Answer:
13x^2-4
Step-by-step explanation:
(5x^2-3)+(8x^2-1)=
5x^2+8x^2-3-1=
13x^2-4
True, if you see the picture of a triangle with altitudes, the lines are drawn on the inside. Hope that helps!)
Let number be x and x+13
Then x+x+13=15 (A/q)
2x+13=15
2x=2
X=1
:. X+13= 14
Two numbers are 1 And 14