The Spartans are planning a field trip. The trip costs $5 for each student ticket and a flat fee of $100 for the buses (no matter how many buses are used). Which expression would help the teachers find the total cost if n amount of students are invited to the field trip. * A. 5 + n(100)
B. 5n + 100
C. 5(100) + n
D. n + 5n

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

cutt.ly/wzUiVyK

B

Step-by-step explanation:

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

8

step-by-step explanation:

this is a subtraction problem.

10 - 2 = 8