If nacny have 100 apples and she gave 3 of her friends 5 apples how many apples will she have if she bought 5 and gavel away 12?

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

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

Which statements are true about additional information for proving that the triangles are congruent check all that apply