Let's simplify step-by-step.

There are no like terms.
Answer:

20+35+30= 1 hr&25 min so she should leave at 5:20
Answer:
I don't know which letter answer it is because it is unclear in the question, but the answer is:
28/100 for the fraction
0.28 for the decimal
Answer:
Standard Form: y = 4(x-1)(x+5)
Step-by-step explanation:
4 is the leading coefficient, so it should go in front. When making a standard quadratic equation, you must do the opposite for each of the roots (negative to positive, positive to negative.)
if you’re asking for a general form quadratic equation, then sorry, I am unable to help you with that :(
Answer:
B, between 1 and 3 seconds.
Step-by-step explanation:
This is because the line is horizontal, and no changes were made, meaning she stopped walking.
Hope this helped.