Answer:
1. Second Option, 2. Second Option, 3. Second Option, 4. First Option, 5. Sonia, 6. 1/2 a mile (.5), 7. $0.25, 8. $21, 9. Stan, Tran, Fran.
Step-by-step explanation:
For all of them, just divide the top number by the bottom number and compare all the numbers.
Look at the picture.

The perimeter of the triangle:
Answer:
9x
Step-by-step explanation:
because they're like terms add them together
3x + 6x = 3 + 6 =
9x, could i have brainliest if possible thanks!
The dependent variable is the number of times you have typed. This is because time is the independent (x) variable as the number of times you've typed is the dependent (y) variable.
Amplitude: 1/4 (= |a|)
Frequency: 1/2 (= |b|)
Period: 4pi (= 2pi/|b|)