Find angles M < 1-7 pleasee help me no links

Data was collected on myrtle beach for 11 consecutive days. each day the temperature and number of visitors was noted. the scatter plot below represents this data. how many people visited the beach when the temperature was 84 degrees?

The graph below shows the height of a projectile t seconds after it is launched. if acceleration due to gravity is -16 ft/s2, which equation models the height of the projectile correctly?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'