Every month, Helen budgets $110 for coffee from the coffee bar located in the lobby of her apartment building. If she stops by t
1 answer:
You might be interested in
-16t^2+400=0
16t^2=400
take square root on both sides.
4t=20
t=20/4
t=5
-16t^2+400=0
16t^2=400
take square root on both sides.
4t=20
t=20/4
t=5