Can a trustworthy person do a favor for me

Which measure is equivalent to 110 ml? 0.0110 l 0.110 l 1.10 l 11,000 l

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?

Is there an x intercept in the equation 60*1.15^x