Maria said the expression - 5n+ 2 + 8n - 9 is equivalent to - 4n. What error did Maria likely make? What error did Maria likely make?
O A. She multiplied all the numbers instead of adding or subtracting.
OB. She did not group like terms correctly. She combined all of the numbers in the expression even tho
they are not all coefficients of n.
OC. She combined only the coefficients of n.
OD. She did not group like terms correctly. She combined only the first two numbers.

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110

what chart am i supposed to follow?

divide the numbers

step-by-step explanation: