(BASIC POLYGON)100 POINTS AND BRAINLIEST HELPP ANSWER THESE 4 QUESTION HELP
NO STUPID ANSWER JUST SENSIBLE ANSWER :'(

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?

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?